Deck 2: Biological Beginnings

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Question
The food-scarce environment of our ancestors likely led to humans' propensity to gorge when food is available and to crave high-caloric foods-a trait that might lead to an epidemic of obesity when food is plentiful. This illustrates how:

A) socialization influences the development of behavior and cognitive skills in human beings.
B) evolved mechanisms are not always adaptive in contemporary society.
C) organisms pass on characteristics they had acquired during their lifetime to their offspring.
D) the benefits of evolutionary selection decrease with age.
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Question
Which of the following is TRUE of mitosis in humans?

A) Mitosis is the cellular reproduction that occurs in the sperm and egg cells.
B) Mitosis results in the formation of four new cells.
C) Mitosis results in the formation of new cells with 23 pairs of chromosomes.
D) Mitosis results in the formation of three new cells.
Question
The nucleus of each human cell contains _____, which are threadlike structures made up of deoxyribonucleic acid (DNA).

A) mitochondria
B) ribosomes
C) chromosomes
D) mesosomes
Question
Which of the following is TRUE regarding genes?

A) Each gene corresponds with one specific protein.
B) Genes act independently of each other.
C) Humans have more genes than proteins.
D) Genetic expression is influenced by the environment.
Question
_____ psychology emphasizes the importance of adaptation, reproduction, and "survival of the fittest" in shaping behavior.

A) Psychoanalytic
B) Cognitive
C) Evolutionary
D) Humanistic
Question
_____ is a stage in reproduction whereby an egg and a sperm fuse to create a single cell.

A) Fertilization
B) Osmosis
C) Meiosis
D) Mitosis
Question
Which of the following statements about the activity of genes is TRUE?

A) Genes are not collaborative.
B) A single gene codes for a single, specific protein.
C) Genetic expression is unaffected by environmental factors.
D) Events inside of the cell can excite or inhibit genetic expression.
Question
According to evolutionary developmental psychologists, many evolved psychological mechanisms are _____. That is, the mechanisms apply only to a specific aspect of a person's psychological makeup.

A) domain specific
B) maladjusted
C) nonoperational
D) general-purpose devices
Question
Which of the following was NOT a finding in the study of sleep deprivation and genetic expression described in the textbook?

A) It increased inflammation.
B) It increased cortisol production.
C) It impaired protein functioning.
D) It prompted the expression of stress-related genes.
Question
Dr. Pamarti is studying breast cancer by obtaining DNA samples from women who have breast cancer and those who don't, and completing genetic profiles on each group to find where the genetic differences are. This method is called:

A) genome-wide association.
B) genome-chromosome association.
C) genetic-protein association.
D) genetic-fertilization association.
Question
Which of the following is NOT a criticism of the evolutionary perspective?

A) It is "one-sided evolutionism" and gives less attention to cognitive factors.
B) It is so easy to test that it creates more studies than can be followed.
C) It is difficult to refute because evolution occurs on such a grand time scale.
D) It does not dictate behavior.
Question
During the process of _____, the cell's nucleus-including the chromosomes-duplicates itself and the cell divides, resulting in the formation of two cells.

A) meiosis
B) osmosis
C) fertilization
D) mitosis
Question
_____ are the building blocks of cells as well as the regulators that direct the body's processes.

A) Genes
B) Proteins
C) Ribosomes
D) DNA
Question
According to evolutionary psychology, the observed advantage in spatial skills for men over women might be the result of:

A) better education available to males.
B) the need to track and slay one's food to survive.
C) males' tendency to play video games.
D) males gathering seeds to plant for food.
Question
According to the concept of natural selection, the best-adapted individuals:

A) are more likely to survive and leave the most offspring.
B) are more likely to succumb to the depletion of environmental resources in an area.
C) are less likely to reproduce than their less well-adapted peers.
D) are not present in most cultures.
Question
The textbook reports that new studies using the genome-wide association method have focused on all of the following EXCEPT:

A) obesity.
B) cardiovascular disease.
C) glaucoma.
D) anxiety.
Question
Which is NOT true of the genome-wide association method?

A) Its success led to the start of the Human Genome Project.
B) It involves machines that scan cells for variations in cells.
C) It is used to identify genetic variations linked to particular diseases.
D) It requires studying DNA from those with and without a particular disease.
Question
According to recent studies, the number of protein-producing genes is predicted to be:

A) greater than 100
,000.
B) greater than 200
,000.
C) less than 5
,000.
D) less than 20
,000.
Question
_____, the units of hereditary information, are short segments of DNA. Genes

A) They direct cells to reproduce themselves and to assemble proteins.
B) Chromosomes
C) RNA
D) Ribosomes
Question
_____ selection, as described by Darwin, is the evolutionary process by which those individuals of a species that are best adapted to their environment are the ones that are most likely to survive and reproduce.

A) Natural
B) Environmental
C) Random
D) Necessary
Question
Jason was born with _____. The doctor tells his parents that compared to his peers, he will have a round face, flattened skull, an extra fold of skin over his eyelids, a thickened tongue, short limbs, and some intellectual difficulties.

A) fragile X syndrome
B) Klinefelter disease
C) Down syndrome
D) Tay-Sachs disease
Question
Which of the following is TRUE of Down syndrome?

A) It primarily occurs in African-American children.
B) It occurs when genetic imprinting goes awry.
C) Its symptoms include retardation of motor and mental abilities.
D) It is caused by the presence of an extra copy of chromosome Y.
Question
_____ genes are those that make the individual more vulnerable to specific diseases or acceleration of aging, whereas ____genes_make the individual less vulnerable to certain diseases and more likely to live to an older age.

A) Susceptibility; longevity
B) Longevity; mutated
C) Vulnerability; susceptibility
D) Mutated; good
Question
Emma and Anna are identical twins who were adopted by different families a few weeks after birth. Although genetically identical, they grew up with different physical and psychological characteristics. For example, though both inherited a tendency to grow large, Anna was slim and athletic due to the active lifestyle practiced in her adoptive family. This variability can be explained by how:

A) each zygote is unique.
B) longevity genes can make an individual less vulnerable to certain diseases.
C) for each genotype, a range of phenotypes can be expressed.
D) mutated genes can be a source of genetic variability.
Question
Erin is 90 years old. She has relatively good health and is fully mobile. Most of Erin's blood relatives lived to a much later age than most of their same-age friends. Which of the following genes might be responsible for this?

A) Susceptibility genes
B) Longevity genes
C) Vulnerability genes
D) Mutated genes
Question
Who is MOST likely to develop an X-linked disease?

A) Males
B) Females
C) Children of either gender
D) People with blonde hair
Question
According to your text, gene-gene interactions have been documented in all of the following EXCEPT:

A) alcoholism.
B) asthma.
C) arthritis.
D) anxiety.
Question
A recessive gene exerts its influence only if:

A) both genes in a pair are recessive.
B) it is the stronger gene.
C) the environment is right.
D) the dominant gene is also present in the pair.
Question
In human beings, by the end of meiosis, each egg or sperm has _____ chromosomes.

A) 46 paired
B) 23 unpaired
C) 23 paired
D) 46 unpaired
Question
During _____, a cell of the testes in men or ovaries in women duplicates its chromosomes and then divides twice, thus forming four cells, each of which has only half the genetic material of the parent cell.

A) meiosis
B) mitosis
C) osmosis
D) fertilization
Question
In some cases, one gene of a pair always exerts its effects, overriding the potential influence of the other gene. This is the _____ principle.

A) sex-linked genes
B) dominant-recessive genes
C) genetic imprinting
D) polygenic inheritance
Question
Joseph was born with the potential to be quite tall; however, during his childhood his family struggled and he didn't have a nutritious diet. The result is that Joseph is not as tall as his parents. Another way of describing Joseph's situation is that his ______ was(were) not expressed in his _____.

A) phenotype; genotype
B) susceptibility genes; longevity genes
C) genotype; phenotype
D) longevity genes; susceptibility genes
Question
During fertilization, an egg and a sperm fuse to create a single cell called a:

A) blastocyst.
B) fetus.
C) gamete.
D) zygote.
Question
Carrie's parents both have brown hair. However, Carrie gets genes for blonde hair from both parents, and as a result she has blonde hair. This indicates that the gene for blonde hair is a:

A) recessive gene.
B) dominant gene.
C) susceptibility gene.
D) longevity gene.
Question
_____ is caused by the presence of an extra copy of chromosome 21.

A) Down syndrome
B) Hemophilia
C) Huntington's disease
D) Sickle-cell anemia
Question
_____ genes are those that make the individual less vulnerable to certain diseases and more likely to live to an older age.

A) Susceptibility
B) Longevity
C) Vulnerability
D) Mutated
Question
Clark's genotype contains a dominant gene for brown eye color and a recessive gene for blue eye color. According to the dominant-recessive gene principle, which of the following phenotypes is most likely to be observed in Clark?

A) Black eyes
B) Blue eyes
C) Grey eyes
D) Brown eyes
Question
Mary's mother has blonde hair and her father has brown hair. Mary has a gene for brown hair and a gene for blonde hair. She has brown hair. This indicates that the gene for brown hair is a:

A) dominant gene.
B) recessive gene.
C) susceptible gene.
D) longevity gene.
Question
_____ is the way an individual's genotype is expressed in observable and measurable characteristics.

A) RNA
B) DNA
C) Phenotype
D) Stereotype
Question
Marly describes her friend, Gina, as having blonde hair, green eyes, and fair skin with freckles. Marly has described Gina's:

A) genotype.
B) genetic imprint.
C) phenotype.
D) X-linked inheritance.
Question
Tristan has a genetic disorder that results from an abnormality in the X chromosome, which becomes constricted and often breaks. His doctor told Tristan's mother that he has:

A) fragile X syndrome.
B) XYY syndrome.
C) Turner syndrome.
D) Tay-Sachs disease.
Question
Joshua, two, has been diagnosed with _____, a disorder that is found more often in the American Jewish population. Unfortunately, for most children with this abnormality death is likely by age five.

A) spina bifida
B) Tay-Sachs disease
C) sickle-cell anemia
D) Huntington's disease
Question
Which of the following is a gene-linked abnormality?

A) Down syndrome
B) Phenylketonuria (PKU)
C) Turner syndrome
D) Klinefelter syndrome
Question
Mary and Jim are expecting a child, and prenatal diagnostic procedures have confirmed that the fetus has _____, a neural tube disorder that causes brain and spine abnormalities. Their physician has explained that this gene-linked abnormality could be treated with corrective surgery at birth, orthopedic devices, and physical or medical therapy.

A) spina bifida
B) Tay-Sachs disease
C) PKU
D) Huntington's disease
Question
_____ correlations occur because a child's genetically influenced characteristics elicit certain types of environments.

A) Passive genotype-environment
B) Evocative genotype-environment
C) Influential genotype-environment
D) Active (niche-picking) genotype-environment
Question
Klinefelter syndrome occurs when an individual has a chromosomal pattern of:

A) XY.
B) XX.
C) XXY.
D) XYY.
Question
Paul suffers from hemophilia, so he is very concerned every time he gets a cut. His best treatment option is:

A) insulin.
B) blood transfusions.
C) physical therapy.
D) corrective surgery at birth.
Question
Rachel loves to read books and also encourages her daughter to read by regularly taking her to the local library so she can check out lots of books. Rachel's daughter is now an avid reader. This reflects a(n) _____ correlation.

A) passive genotype-environment
B) evocative genotype-environment
C) influential genotype-environment
D) active (niche-picking) genotype-environment
Question
_____ is the field that seeks to discover the influence of heredity and environment on individual differences in human traits and development.

A) Behavior influence
B) Behavior therapy
C) Behavior genetics
D) Behavior development
Question
Which of the following is found more often in females?

A) Turner syndrome
B) XYY syndrome
C) Klinefelter syndrome
D) Fragile X syndrome
Question
Benny has been diagnosed with a gene-linked abnormality characterized by deceleration of mental and physical development caused by an accumulation of lipids in the nervous system. He has been put on medication and a special diet, but his family has been told that he will probably not live beyond the age of five. Benny is suffering from:

A) spina bifida.
B) Tay-Sachs disease.
C) phenylketonuria.
D) Huntington's disease.
Question
Renee is short and has a webbed neck. While she is good in language-related classes, she struggles with math. Having determined she has a chromosomal disorder, doctors have diagnosed her with:

A) fragile X syndrome.
B) XYY syndrome.
C) Klinefelter syndrome.
D) Turner syndrome.
Question
Tracy's parents are avid sports fans. Since she was a child, they took her to numerous baseball and football games, and Tracy regularly watched the sports channel with her dad. When she was old enough, her parents allowed her to join the little league team at her school and she performed well. This is an example of a(n):

A) evocative genotype-environment correlation.
B) active (niche-picking) genotype-environment correlation.
C) passive genotype-environment correlation.
D) gene-gene correlation.
Question
Klinefelter syndrome affects:

A) only males.
B) only females.
C) both males and females equally.
D) more females than males.
Question
Lindsay's body does not produce enough insulin, causing an abnormal metabolism of sugar. She is receiving insulin treatment. Lindsay has:

A) spina bifida.
B) hemophilia.
C) PKU.
D) diabetes.
Question
Which of the following women has the highest probability of giving birth to a child with Down syndrome?

A) Sarah, a 21-year-old Asian woman
B) Jane, a 41-year-old Euro-American woman
C) Ella, a 27-year-old African-American woman
D) Destiny, a 38-year-old African-American woman
Question
Tamera has a genetic disorder where her red blood cells take on a hook shape instead of the normal disk shape. The doctors tell Tamera's parents that she has _____.

A) Tay-Sachs disease
B) sickle-cell anemia
C) leukemia
D) Huntington's disease
Question
Angelique has a chromosomal disorder characterized by a missing X chromosome, making her XO instead of XX. Angelique's doctors have diagnosed her with:

A) fragile X syndrome.
B) XYY syndrome.
C) Klinefelter syndrome.
D) Turner syndrome.
Question
Which of the following is TRUE of phenylketonuria?

A) It results from a recessive gene.
B) It may be treated with insulin.
C) It results in death by five years of age.
D) It is caused by an accumulation of lipids in the nervous system.
Question
Samantha has been diagnosed with _____, which is a glandular dysfunction that interferes with mucus production.

A) cystic fibrosis
B) Huntington's disease
C) PKU
D) Tay-Sachs disease
Question
Which of the following is NOT true of the germinal period?

A) The blastocyst implants in the uterus within the first five days after conception.
B) Fertilization occurs in the upper third of the fallopian tube.
C) The blastocyst forms in four days after conception.
D) Sperm and egg chromosome materials unite within three days after conception.
Question
Which of the following is a feature of the embryonic period of prenatal development?

A) The creation of the fertilized egg
B) Formation of the blastocyst
C) The attachment of the zygote to the uterine wall
D) Formation of support systems for cells
Question
During your physiology course the instructor asks, "Moving from the outer layer of embryonic cells to the inner layer, what are the layers called?" You immediately write down:

A) endoderm, epidermis, ectoderm, mesoderm.
B) ectoderm, epidermis, mesoderm, endoderm.
C) ectoderm, endoderm, mesoderm.
D) ectoderm, mesoderm, endoderm.
Question
Wren is four weeks pregnant. Which of the following stages of prenatal development is Wren currently in?

A) Embryonic
B) Fetal
C) Placental
D) Germinal
Question
Recent studies have shown that individuals with a short version of a gene labeled five-HTTLPR have an elevated risk of developing depression, but only if they also lead stressful lives. This is an example of:

A) heredity-environment correlation.
B) evocative genotype-environment correlation.
C) gene * environment (G * E) interaction.
D) passive genotype-environment interaction.
Question
_____ is the interaction of a specific measured variation in the DNA and a specific measured aspect of the environment.

A) Heredity-environment correlation
B) Evocative genotype-environment correlation
C) Gene * environment (G * E) interaction
D) Passive genotype-environment interaction
Question
The _____ consists of three layers of cells: the endoderm, the mesoderm, and the ectoderm.

A) blastocyst
B) fetus
C) embryo
D) trophoblast
Question
Rachel is in the first period of prenatal development, just following fertilization. Even though she doesn't know it, she is in the _____ period of prenatal development.

A) fetal
B) embryonic
C) implantation
D) germinal
Question
The zygote first begins rapid cell division in the _____ period of prenatal development.

A) fetal
B) embryonic
C) implantation
D) germinal
Question
_____ refers to the attachment of the blastocyst to the uterine wall.

A) Implantation
B) Conception
C) Fertilization
D) Involution
Question
Which of the following is in the correct order of the three periods in prenatal development from conception to birth?

A) Fertile, embryonic, postterm
B) Preterm, germinal, postterm
C) Gestational, germinal, postnatal
D) Germinal, embryonic, fetal
Question
All body parts eventually develop from the layers of the embryo, with the ______ producing the internal parts and the _______ producing the surface parts.

A) endoderm; mesoderm
B) mesoderm; endoderm
C) endoderm; ectoderm
D) ectoderm; endoderm
Question
Timothy is a quiet six-year-old who is usually withdrawn in class. As a result, he does not receive much attention from his peers and mostly plays by himself. According to Sandra Scarr, this is an example of a(n):

A) passive genotype-environment correlation.
B) active (niche-picking) genotype-environment correlation.
C) gene * environment (G * E) interaction.
D) evocative genotype-environment correlation.
Question
Which of the following is an example of a passive genotype-environment correlation?

A) Uncooperative, distractible children receive more unpleasant and disciplinary action from parents and teachers.
B) Outgoing children tend to seek out social contexts in which to interact with people.
C) Parents who have a genetic predisposition to be musically inclined encourage their children to learn how to play a musical instrument.
D) Infants who smile more receive more attention from individuals in their social environment.
Question
The _____ view states that development is the result of an ongoing, bidirectional interchange between heredity and the environment.

A) epigenetic
B) biosocial
C) sociogenetic
D) socioenvironmental
Question
Brad is an athletic boy who is on every sports team in school. Stephen loves math and is part of his school's math club. These instances reflect _____ correlations that occur when children seek out environments that they find compatible and stimulating.

A) passive genotype-environment
B) evocative genotype-environment
C) active (niche-picking) genotype-environment
D) influential genotype-environment
Question
The _____ is the outer layer of cells of the blastocyst that later provides nutrition and support for the embryo.

A) ectoderm
B) perineum
C) cytocyst
D) trophoblast
Question
The embryo's _____ develops into the digestive and respiratory systems.

A) ectoderm
B) endoderm
C) trophoblast
D) mesoderm
Question
The _____ is a layer of the embryo which will become the circulatory system, bones, muscles, excretory system, and reproductive system.

A) endoderm
B) ectoderm
C) mesoderm
D) epidermis
Question
Charlie is a cooperative, attentive child who is a favorite at home and school and receives positive, instructive responses from adults. This is indicative of a(n):

A) passive genotype-environment correlation.
B) evocative genotype-environment correlation.
C) influential genotype-environment correlation.
D) active (niche-picking) genotype-environment correlation.
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Deck 2: Biological Beginnings
1
The food-scarce environment of our ancestors likely led to humans' propensity to gorge when food is available and to crave high-caloric foods-a trait that might lead to an epidemic of obesity when food is plentiful. This illustrates how:

A) socialization influences the development of behavior and cognitive skills in human beings.
B) evolved mechanisms are not always adaptive in contemporary society.
C) organisms pass on characteristics they had acquired during their lifetime to their offspring.
D) the benefits of evolutionary selection decrease with age.
evolved mechanisms are not always adaptive in contemporary society.
2
Which of the following is TRUE of mitosis in humans?

A) Mitosis is the cellular reproduction that occurs in the sperm and egg cells.
B) Mitosis results in the formation of four new cells.
C) Mitosis results in the formation of new cells with 23 pairs of chromosomes.
D) Mitosis results in the formation of three new cells.
Mitosis results in the formation of new cells with 23 pairs of chromosomes.
3
The nucleus of each human cell contains _____, which are threadlike structures made up of deoxyribonucleic acid (DNA).

A) mitochondria
B) ribosomes
C) chromosomes
D) mesosomes
chromosomes
4
Which of the following is TRUE regarding genes?

A) Each gene corresponds with one specific protein.
B) Genes act independently of each other.
C) Humans have more genes than proteins.
D) Genetic expression is influenced by the environment.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
5
_____ psychology emphasizes the importance of adaptation, reproduction, and "survival of the fittest" in shaping behavior.

A) Psychoanalytic
B) Cognitive
C) Evolutionary
D) Humanistic
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
6
_____ is a stage in reproduction whereby an egg and a sperm fuse to create a single cell.

A) Fertilization
B) Osmosis
C) Meiosis
D) Mitosis
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
7
Which of the following statements about the activity of genes is TRUE?

A) Genes are not collaborative.
B) A single gene codes for a single, specific protein.
C) Genetic expression is unaffected by environmental factors.
D) Events inside of the cell can excite or inhibit genetic expression.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
8
According to evolutionary developmental psychologists, many evolved psychological mechanisms are _____. That is, the mechanisms apply only to a specific aspect of a person's psychological makeup.

A) domain specific
B) maladjusted
C) nonoperational
D) general-purpose devices
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
9
Which of the following was NOT a finding in the study of sleep deprivation and genetic expression described in the textbook?

A) It increased inflammation.
B) It increased cortisol production.
C) It impaired protein functioning.
D) It prompted the expression of stress-related genes.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
10
Dr. Pamarti is studying breast cancer by obtaining DNA samples from women who have breast cancer and those who don't, and completing genetic profiles on each group to find where the genetic differences are. This method is called:

A) genome-wide association.
B) genome-chromosome association.
C) genetic-protein association.
D) genetic-fertilization association.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
11
Which of the following is NOT a criticism of the evolutionary perspective?

A) It is "one-sided evolutionism" and gives less attention to cognitive factors.
B) It is so easy to test that it creates more studies than can be followed.
C) It is difficult to refute because evolution occurs on such a grand time scale.
D) It does not dictate behavior.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
12
During the process of _____, the cell's nucleus-including the chromosomes-duplicates itself and the cell divides, resulting in the formation of two cells.

A) meiosis
B) osmosis
C) fertilization
D) mitosis
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
13
_____ are the building blocks of cells as well as the regulators that direct the body's processes.

A) Genes
B) Proteins
C) Ribosomes
D) DNA
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
14
According to evolutionary psychology, the observed advantage in spatial skills for men over women might be the result of:

A) better education available to males.
B) the need to track and slay one's food to survive.
C) males' tendency to play video games.
D) males gathering seeds to plant for food.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
15
According to the concept of natural selection, the best-adapted individuals:

A) are more likely to survive and leave the most offspring.
B) are more likely to succumb to the depletion of environmental resources in an area.
C) are less likely to reproduce than their less well-adapted peers.
D) are not present in most cultures.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
16
The textbook reports that new studies using the genome-wide association method have focused on all of the following EXCEPT:

A) obesity.
B) cardiovascular disease.
C) glaucoma.
D) anxiety.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
17
Which is NOT true of the genome-wide association method?

A) Its success led to the start of the Human Genome Project.
B) It involves machines that scan cells for variations in cells.
C) It is used to identify genetic variations linked to particular diseases.
D) It requires studying DNA from those with and without a particular disease.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
18
According to recent studies, the number of protein-producing genes is predicted to be:

A) greater than 100
,000.
B) greater than 200
,000.
C) less than 5
,000.
D) less than 20
,000.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
19
_____, the units of hereditary information, are short segments of DNA. Genes

A) They direct cells to reproduce themselves and to assemble proteins.
B) Chromosomes
C) RNA
D) Ribosomes
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
20
_____ selection, as described by Darwin, is the evolutionary process by which those individuals of a species that are best adapted to their environment are the ones that are most likely to survive and reproduce.

A) Natural
B) Environmental
C) Random
D) Necessary
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
21
Jason was born with _____. The doctor tells his parents that compared to his peers, he will have a round face, flattened skull, an extra fold of skin over his eyelids, a thickened tongue, short limbs, and some intellectual difficulties.

A) fragile X syndrome
B) Klinefelter disease
C) Down syndrome
D) Tay-Sachs disease
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
22
Which of the following is TRUE of Down syndrome?

A) It primarily occurs in African-American children.
B) It occurs when genetic imprinting goes awry.
C) Its symptoms include retardation of motor and mental abilities.
D) It is caused by the presence of an extra copy of chromosome Y.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
23
_____ genes are those that make the individual more vulnerable to specific diseases or acceleration of aging, whereas ____genes_make the individual less vulnerable to certain diseases and more likely to live to an older age.

A) Susceptibility; longevity
B) Longevity; mutated
C) Vulnerability; susceptibility
D) Mutated; good
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
24
Emma and Anna are identical twins who were adopted by different families a few weeks after birth. Although genetically identical, they grew up with different physical and psychological characteristics. For example, though both inherited a tendency to grow large, Anna was slim and athletic due to the active lifestyle practiced in her adoptive family. This variability can be explained by how:

A) each zygote is unique.
B) longevity genes can make an individual less vulnerable to certain diseases.
C) for each genotype, a range of phenotypes can be expressed.
D) mutated genes can be a source of genetic variability.
Unlock Deck
Unlock for access to all 206 flashcards in this deck.
Unlock Deck
k this deck
25
Erin is 90 years old. She has relatively good health and is fully mobile. Most of Erin's blood relatives lived to a much later age than most of their same-age friends. Which of the following genes might be responsible for this?

A) Susceptibility genes
B) Longevity genes
C) Vulnerability genes
D) Mutated genes
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26
Who is MOST likely to develop an X-linked disease?

A) Males
B) Females
C) Children of either gender
D) People with blonde hair
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27
According to your text, gene-gene interactions have been documented in all of the following EXCEPT:

A) alcoholism.
B) asthma.
C) arthritis.
D) anxiety.
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28
A recessive gene exerts its influence only if:

A) both genes in a pair are recessive.
B) it is the stronger gene.
C) the environment is right.
D) the dominant gene is also present in the pair.
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29
In human beings, by the end of meiosis, each egg or sperm has _____ chromosomes.

A) 46 paired
B) 23 unpaired
C) 23 paired
D) 46 unpaired
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30
During _____, a cell of the testes in men or ovaries in women duplicates its chromosomes and then divides twice, thus forming four cells, each of which has only half the genetic material of the parent cell.

A) meiosis
B) mitosis
C) osmosis
D) fertilization
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31
In some cases, one gene of a pair always exerts its effects, overriding the potential influence of the other gene. This is the _____ principle.

A) sex-linked genes
B) dominant-recessive genes
C) genetic imprinting
D) polygenic inheritance
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32
Joseph was born with the potential to be quite tall; however, during his childhood his family struggled and he didn't have a nutritious diet. The result is that Joseph is not as tall as his parents. Another way of describing Joseph's situation is that his ______ was(were) not expressed in his _____.

A) phenotype; genotype
B) susceptibility genes; longevity genes
C) genotype; phenotype
D) longevity genes; susceptibility genes
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33
During fertilization, an egg and a sperm fuse to create a single cell called a:

A) blastocyst.
B) fetus.
C) gamete.
D) zygote.
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34
Carrie's parents both have brown hair. However, Carrie gets genes for blonde hair from both parents, and as a result she has blonde hair. This indicates that the gene for blonde hair is a:

A) recessive gene.
B) dominant gene.
C) susceptibility gene.
D) longevity gene.
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35
_____ is caused by the presence of an extra copy of chromosome 21.

A) Down syndrome
B) Hemophilia
C) Huntington's disease
D) Sickle-cell anemia
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36
_____ genes are those that make the individual less vulnerable to certain diseases and more likely to live to an older age.

A) Susceptibility
B) Longevity
C) Vulnerability
D) Mutated
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37
Clark's genotype contains a dominant gene for brown eye color and a recessive gene for blue eye color. According to the dominant-recessive gene principle, which of the following phenotypes is most likely to be observed in Clark?

A) Black eyes
B) Blue eyes
C) Grey eyes
D) Brown eyes
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38
Mary's mother has blonde hair and her father has brown hair. Mary has a gene for brown hair and a gene for blonde hair. She has brown hair. This indicates that the gene for brown hair is a:

A) dominant gene.
B) recessive gene.
C) susceptible gene.
D) longevity gene.
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39
_____ is the way an individual's genotype is expressed in observable and measurable characteristics.

A) RNA
B) DNA
C) Phenotype
D) Stereotype
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40
Marly describes her friend, Gina, as having blonde hair, green eyes, and fair skin with freckles. Marly has described Gina's:

A) genotype.
B) genetic imprint.
C) phenotype.
D) X-linked inheritance.
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41
Tristan has a genetic disorder that results from an abnormality in the X chromosome, which becomes constricted and often breaks. His doctor told Tristan's mother that he has:

A) fragile X syndrome.
B) XYY syndrome.
C) Turner syndrome.
D) Tay-Sachs disease.
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42
Joshua, two, has been diagnosed with _____, a disorder that is found more often in the American Jewish population. Unfortunately, for most children with this abnormality death is likely by age five.

A) spina bifida
B) Tay-Sachs disease
C) sickle-cell anemia
D) Huntington's disease
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43
Which of the following is a gene-linked abnormality?

A) Down syndrome
B) Phenylketonuria (PKU)
C) Turner syndrome
D) Klinefelter syndrome
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44
Mary and Jim are expecting a child, and prenatal diagnostic procedures have confirmed that the fetus has _____, a neural tube disorder that causes brain and spine abnormalities. Their physician has explained that this gene-linked abnormality could be treated with corrective surgery at birth, orthopedic devices, and physical or medical therapy.

A) spina bifida
B) Tay-Sachs disease
C) PKU
D) Huntington's disease
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45
_____ correlations occur because a child's genetically influenced characteristics elicit certain types of environments.

A) Passive genotype-environment
B) Evocative genotype-environment
C) Influential genotype-environment
D) Active (niche-picking) genotype-environment
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46
Klinefelter syndrome occurs when an individual has a chromosomal pattern of:

A) XY.
B) XX.
C) XXY.
D) XYY.
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47
Paul suffers from hemophilia, so he is very concerned every time he gets a cut. His best treatment option is:

A) insulin.
B) blood transfusions.
C) physical therapy.
D) corrective surgery at birth.
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48
Rachel loves to read books and also encourages her daughter to read by regularly taking her to the local library so she can check out lots of books. Rachel's daughter is now an avid reader. This reflects a(n) _____ correlation.

A) passive genotype-environment
B) evocative genotype-environment
C) influential genotype-environment
D) active (niche-picking) genotype-environment
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49
_____ is the field that seeks to discover the influence of heredity and environment on individual differences in human traits and development.

A) Behavior influence
B) Behavior therapy
C) Behavior genetics
D) Behavior development
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50
Which of the following is found more often in females?

A) Turner syndrome
B) XYY syndrome
C) Klinefelter syndrome
D) Fragile X syndrome
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51
Benny has been diagnosed with a gene-linked abnormality characterized by deceleration of mental and physical development caused by an accumulation of lipids in the nervous system. He has been put on medication and a special diet, but his family has been told that he will probably not live beyond the age of five. Benny is suffering from:

A) spina bifida.
B) Tay-Sachs disease.
C) phenylketonuria.
D) Huntington's disease.
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52
Renee is short and has a webbed neck. While she is good in language-related classes, she struggles with math. Having determined she has a chromosomal disorder, doctors have diagnosed her with:

A) fragile X syndrome.
B) XYY syndrome.
C) Klinefelter syndrome.
D) Turner syndrome.
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53
Tracy's parents are avid sports fans. Since she was a child, they took her to numerous baseball and football games, and Tracy regularly watched the sports channel with her dad. When she was old enough, her parents allowed her to join the little league team at her school and she performed well. This is an example of a(n):

A) evocative genotype-environment correlation.
B) active (niche-picking) genotype-environment correlation.
C) passive genotype-environment correlation.
D) gene-gene correlation.
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54
Klinefelter syndrome affects:

A) only males.
B) only females.
C) both males and females equally.
D) more females than males.
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55
Lindsay's body does not produce enough insulin, causing an abnormal metabolism of sugar. She is receiving insulin treatment. Lindsay has:

A) spina bifida.
B) hemophilia.
C) PKU.
D) diabetes.
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56
Which of the following women has the highest probability of giving birth to a child with Down syndrome?

A) Sarah, a 21-year-old Asian woman
B) Jane, a 41-year-old Euro-American woman
C) Ella, a 27-year-old African-American woman
D) Destiny, a 38-year-old African-American woman
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57
Tamera has a genetic disorder where her red blood cells take on a hook shape instead of the normal disk shape. The doctors tell Tamera's parents that she has _____.

A) Tay-Sachs disease
B) sickle-cell anemia
C) leukemia
D) Huntington's disease
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58
Angelique has a chromosomal disorder characterized by a missing X chromosome, making her XO instead of XX. Angelique's doctors have diagnosed her with:

A) fragile X syndrome.
B) XYY syndrome.
C) Klinefelter syndrome.
D) Turner syndrome.
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Unlock Deck
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59
Which of the following is TRUE of phenylketonuria?

A) It results from a recessive gene.
B) It may be treated with insulin.
C) It results in death by five years of age.
D) It is caused by an accumulation of lipids in the nervous system.
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60
Samantha has been diagnosed with _____, which is a glandular dysfunction that interferes with mucus production.

A) cystic fibrosis
B) Huntington's disease
C) PKU
D) Tay-Sachs disease
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61
Which of the following is NOT true of the germinal period?

A) The blastocyst implants in the uterus within the first five days after conception.
B) Fertilization occurs in the upper third of the fallopian tube.
C) The blastocyst forms in four days after conception.
D) Sperm and egg chromosome materials unite within three days after conception.
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62
Which of the following is a feature of the embryonic period of prenatal development?

A) The creation of the fertilized egg
B) Formation of the blastocyst
C) The attachment of the zygote to the uterine wall
D) Formation of support systems for cells
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63
During your physiology course the instructor asks, "Moving from the outer layer of embryonic cells to the inner layer, what are the layers called?" You immediately write down:

A) endoderm, epidermis, ectoderm, mesoderm.
B) ectoderm, epidermis, mesoderm, endoderm.
C) ectoderm, endoderm, mesoderm.
D) ectoderm, mesoderm, endoderm.
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64
Wren is four weeks pregnant. Which of the following stages of prenatal development is Wren currently in?

A) Embryonic
B) Fetal
C) Placental
D) Germinal
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65
Recent studies have shown that individuals with a short version of a gene labeled five-HTTLPR have an elevated risk of developing depression, but only if they also lead stressful lives. This is an example of:

A) heredity-environment correlation.
B) evocative genotype-environment correlation.
C) gene * environment (G * E) interaction.
D) passive genotype-environment interaction.
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66
_____ is the interaction of a specific measured variation in the DNA and a specific measured aspect of the environment.

A) Heredity-environment correlation
B) Evocative genotype-environment correlation
C) Gene * environment (G * E) interaction
D) Passive genotype-environment interaction
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67
The _____ consists of three layers of cells: the endoderm, the mesoderm, and the ectoderm.

A) blastocyst
B) fetus
C) embryo
D) trophoblast
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68
Rachel is in the first period of prenatal development, just following fertilization. Even though she doesn't know it, she is in the _____ period of prenatal development.

A) fetal
B) embryonic
C) implantation
D) germinal
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69
The zygote first begins rapid cell division in the _____ period of prenatal development.

A) fetal
B) embryonic
C) implantation
D) germinal
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70
_____ refers to the attachment of the blastocyst to the uterine wall.

A) Implantation
B) Conception
C) Fertilization
D) Involution
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71
Which of the following is in the correct order of the three periods in prenatal development from conception to birth?

A) Fertile, embryonic, postterm
B) Preterm, germinal, postterm
C) Gestational, germinal, postnatal
D) Germinal, embryonic, fetal
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72
All body parts eventually develop from the layers of the embryo, with the ______ producing the internal parts and the _______ producing the surface parts.

A) endoderm; mesoderm
B) mesoderm; endoderm
C) endoderm; ectoderm
D) ectoderm; endoderm
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73
Timothy is a quiet six-year-old who is usually withdrawn in class. As a result, he does not receive much attention from his peers and mostly plays by himself. According to Sandra Scarr, this is an example of a(n):

A) passive genotype-environment correlation.
B) active (niche-picking) genotype-environment correlation.
C) gene * environment (G * E) interaction.
D) evocative genotype-environment correlation.
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74
Which of the following is an example of a passive genotype-environment correlation?

A) Uncooperative, distractible children receive more unpleasant and disciplinary action from parents and teachers.
B) Outgoing children tend to seek out social contexts in which to interact with people.
C) Parents who have a genetic predisposition to be musically inclined encourage their children to learn how to play a musical instrument.
D) Infants who smile more receive more attention from individuals in their social environment.
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75
The _____ view states that development is the result of an ongoing, bidirectional interchange between heredity and the environment.

A) epigenetic
B) biosocial
C) sociogenetic
D) socioenvironmental
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76
Brad is an athletic boy who is on every sports team in school. Stephen loves math and is part of his school's math club. These instances reflect _____ correlations that occur when children seek out environments that they find compatible and stimulating.

A) passive genotype-environment
B) evocative genotype-environment
C) active (niche-picking) genotype-environment
D) influential genotype-environment
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77
The _____ is the outer layer of cells of the blastocyst that later provides nutrition and support for the embryo.

A) ectoderm
B) perineum
C) cytocyst
D) trophoblast
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78
The embryo's _____ develops into the digestive and respiratory systems.

A) ectoderm
B) endoderm
C) trophoblast
D) mesoderm
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79
The _____ is a layer of the embryo which will become the circulatory system, bones, muscles, excretory system, and reproductive system.

A) endoderm
B) ectoderm
C) mesoderm
D) epidermis
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80
Charlie is a cooperative, attentive child who is a favorite at home and school and receives positive, instructive responses from adults. This is indicative of a(n):

A) passive genotype-environment correlation.
B) evocative genotype-environment correlation.
C) influential genotype-environment correlation.
D) active (niche-picking) genotype-environment correlation.
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