Question 1

Individuals with sickle-cell trait must carry both recessive alleles in order to display symptoms.

Accepted Answer

A) True 
 B)False

Question 2

If obesity is dominant and designated as "O" and thinness is recessive and designated as "t," how many of the following individuals would likely be obese: Ginger who is "OO," Mary Ann who is "Ot," Thurston who is "tO," and Gilligan who is "tt"?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 3

When each member of a pair of alleles produces a different outcome, the alleles are classified as _____.

Accepted Answer

The answer of When each member of a pair of...

Question 4

By definition, premature infants are born prior to ____ weeks after conception.

Accepted Answer

A)  42 
B)  40 
C)  38 
D)  36 
A)  42 
B)  40 
C)  38 
D)  36

Question 5

Whose behavior best exemplifies eugenics?

Accepted Answer

A)  Dr. Green, who uses an in vitro fertilization technique 
B)  Dr. Black, who allows only certain individuals to mate 
C)  Dr. White, who studies the effects of thalidomide on prenatal development 
D)  Dr. Brown, who closely monitors the nutrition of expecting mothers 
A)  Dr. Green, who uses an in vitro fertilization technique 
B)  Dr. Black, who allows only certain individuals to mate 
C)  Dr. White, who studies the effects of thalidomide on prenatal development 
D)  Dr. Brown, who closely monitors the nutrition of expecting mothers

Question 6

The following quotes summarize key concepts in biology. For each one, describe a real-life example illustrating each of these principles:
-"The behavioral consequences of genetic instructions depend on the environment in which those instructions are implemented."
-"Genes can influence the kind of environment to which a person is exposed."
-"Environmental influences typically make children within a family different."

Accepted Answer

The answer of The following quotes summarize key concepts in...

Question 7

Monozygotic is to dizygotic as

Accepted Answer

A)  one mother is to two mothers. 
B)  one egg is to two eggs. 
C)  dominant is to recessive. 
D)  heterozygous is to homozygous. 
A)  one mother is to two mothers. 
B)  one egg is to two eggs. 
C)  dominant is to recessive. 
D)  heterozygous is to homozygous.

Question 8

Hair and the nervous system develop during the embryonic period from cells contained in the ____ layer.

Accepted Answer

A)  mesoderm 
B)  endoderm 
C)  placenta 
D)  ectoderm 
A)  mesoderm 
B)  endoderm 
C)  placenta 
D)  ectoderm

Question 9

"Trisomy 21" (three 21st chromosomes) best describes

Accepted Answer

A)  Huntington's disease. 
B)  Down syndrome. 
C)  Phenylketonuria (PKU). 
D)  sickle-cell trait. 
A)  Huntington's disease. 
B)  Down syndrome. 
C)  Phenylketonuria (PKU). 
D)  sickle-cell trait.

Question 10

A heritability coefficient of _____ means about 50 percent of the difference between people on a specific characteristic is the result of heredity.

Accepted Answer

A)  .5 
B)  5 
C)  50 
D)  500 
A)  .5 
B)  5 
C)  50 
D)  500

Question 11

The embryo is connected to the uterus via the fallopian tube.

Accepted Answer

A) True 
 B)False

Question 12

A(n) _____ allele is ignored when it is combined with a dominant allele.

Accepted Answer

The answer of A(n) _____ allele is ignored when it...

Question 13

As a behavioral geneticist, Professor Klink is most likely to calculate the extent to which depression is inherited using a _____ coefficient.

Accepted Answer

A)  nonshared 
B)  DNA 
C)  polygenetic 
D)  heritability 
A)  nonshared 
B)  DNA 
C)  polygenetic 
D)  heritability

Question 14

What was the most critical lesson about teratogens learned from studies on the use of the drug DES by pregnant women?

Accepted Answer

A)  Sometimes what appear to be teratogens actually are harmless drugs. 
B)  Infants in the late fetal period appear to be the most at risk for impact from drug-related teratogens. 
C)  Sometimes the effects of teratogens are not apparent until long after exposure. 
D)  Females appear to be at much greater risk from teratogens. 
A)  Sometimes what appear to be teratogens actually are harmless drugs. 
B)  Infants in the late fetal period appear to be the most at risk for impact from drug-related teratogens. 
C)  Sometimes the effects of teratogens are not apparent until long after exposure. 
D)  Females appear to be at much greater risk from teratogens.

Question 15

Which combination of sex chromosomes is not possible in a living human being?

Accepted Answer

A)  A single X chromosome 
B)  XXY 
C)  XYY 
D)  A single Y chromosome 
A)  A single X chromosome 
B)  XXY 
C)  XYY 
D)  A single Y chromosome

Question 16

Currently, the earliest "age of viability" occurs around ____ weeks after conception.

Accepted Answer

A)  14 
B)  22 
C)  30 
D)  38 
A)  14 
B)  22 
C)  30 
D)  38

Question 17

The main reason why teenage mothers tend to give birth to less healthy infants than mothers in their 20s is that the teens

Accepted Answer

A)  tend to neither seek nor receive good prenatal care. 
B)  take too many vitamins. 
C)  have more genetically defective eggs. 
D)  are more likely to smoke while pregnant. 
A)  tend to neither seek nor receive good prenatal care. 
B)  take too many vitamins. 
C)  have more genetically defective eggs. 
D)  are more likely to smoke while pregnant.

Question 18

The sample taken during an amniocentesis comes from

Accepted Answer

A)  the lining of the uterus. 
B)  inside the body of the fetus. 
C)  the fluid surrounding the fetus. 
D)  the umbilical cord. 
A)  the lining of the uterus. 
B)  inside the body of the fetus. 
C)  the fluid surrounding the fetus. 
D)  the umbilical cord.

Question 19

What began as a single fertilized egg has just separated into two distinct eggs. This indicates the formation of ____ twins that has occurred during the ____ period of development.

Accepted Answer

A)  fraternal; zygotic 
B)  fraternal; embryonic 
C)  identical; zygotic 
D)  identical; embryonic 
A)  fraternal; zygotic 
B)  fraternal; embryonic 
C)  identical; zygotic 
D)  identical; embryonic

Question 20

John and Wayne have the exact same genes. This indicates that they must be

Accepted Answer

A)  dizygotic twins. 
B)  monozygotic twins. 
C)  heterozygous. 
D)  co-dominant. 
A)  dizygotic twins. 
B)  monozygotic twins. 
C)  heterozygous. 
D)  co-dominant.

Individuals with sickle-cell trait must carry both recessive alleles in order to display symptoms.

If obesity is dominant and designated as "O" and thinness is recessive and designated as "t," how many of the following individuals would likely be obese: Ginger who is "OO," Mary Ann who is "Ot," Thurston who is "tO," and Gilligan who is "tt"?

When each member of a pair of alleles produces a different outcome, the alleles are classified as _____.

By definition, premature infants are born prior to ____ weeks after conception.

Whose behavior best exemplifies eugenics?

Monozygotic is to dizygotic as

Hair and the nervous system develop during the embryonic period from cells contained in the ____ layer.

"Trisomy 21" (three 21st chromosomes) best describes

A heritability coefficient of _____ means about 50 percent of the difference between people on a specific characteristic is the result of heredity.

The embryo is connected to the uterus via the fallopian tube.

A(n) _____ allele is ignored when it is combined with a dominant allele.

As a behavioral geneticist, Professor Klink is most likely to calculate the extent to which depression is inherited using a _____ coefficient.

What was the most critical lesson about teratogens learned from studies on the use of the drug DES by pregnant women?

Which combination of sex chromosomes is not possible in a living human being?

Currently, the earliest "age of viability" occurs around ____ weeks after conception.

The main reason why teenage mothers tend to give birth to less healthy infants than mothers in their 20s is that the teens

The sample taken during an amniocentesis comes from

What began as a single fertilized egg has just separated into two distinct eggs. This indicates the formation of twins that has occurred during the period of development.

John and Wayne have the exact same genes. This indicates that they must be

The Study of Human Development

Tools for Exploring the World: Physical, Perceptual, and Motor Development

The Emergence of Thought and Language: Cognitive Development in Infancy and Early Childhood

Entering the Social World: Socioemotional Development in Infancy and Early Childhood

Off to School: Cognitive and Physical Development in Middle Childhood

Expanding Social Horizons: Socioemotional Development in Middle Childhood

Rites of Passage: Physical and Cognitive Development in Adolescence

Moving into the Adult Social World: Socioemotional Development in Adolescence

Becoming an Adult: Physical, Cognitive, and Personality Development

Being with Others: Forming Relationships in Young and Middle Adulthood

Work and Leisure: Occupational and Lifestyle Issues in Young and Middle Adulthood

Making It in Midlife: The Biopsychosocial Challenges of Middle Adulthood

The Personal Context of Later Life: Physical, Cognitive, and Mental Health Issues

Social Aspects of Later Life: Psychosocial, Retirement, Relationship, and Societal Issues

The Final Passage: Dying and Bereavement

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Exam 2: Biological Foundations: Heredity, Prenatal Development, and Birth

Individuals with sickle-cell trait must carry both recessive alleles in order to display symptoms.

If obesity is dominant and designated as "O" and thinness is recessive and designated as "t," how many of the following individuals would likely be obese: Ginger who is "OO," Mary Ann who is "Ot," Thurston who is "tO," and Gilligan who is "tt"?

When each member of a pair of alleles produces a different outcome, the alleles are classified as _____.

By definition, premature infants are born prior to ____ weeks after conception.

Whose behavior best exemplifies eugenics?

Monozygotic is to dizygotic as

Hair and the nervous system develop during the embryonic period from cells contained in the ____ layer.

"Trisomy 21" (three 21st chromosomes) best describes

A heritability coefficient of _____ means about 50 percent of the difference between people on a specific characteristic is the result of heredity.

The embryo is connected to the uterus via the fallopian tube.

A(n) _____ allele is ignored when it is combined with a dominant allele.

As a behavioral geneticist, Professor Klink is most likely to calculate the extent to which depression is inherited using a _____ coefficient.

What was the most critical lesson about teratogens learned from studies on the use of the drug DES by pregnant women?

Which combination of sex chromosomes is not possible in a living human being?

Currently, the earliest "age of viability" occurs around ____ weeks after conception.

The main reason why teenage mothers tend to give birth to less healthy infants than mothers in their 20s is that the teens

The sample taken during an amniocentesis comes from

What began as a single fertilized egg has just separated into two distinct eggs. This indicates the formation of ____ twins that has occurred during the ____ period of development.

John and Wayne have the exact same genes. This indicates that they must be

The Study of Human Development

Tools for Exploring the World: Physical, Perceptual, and Motor Development

The Emergence of Thought and Language: Cognitive Development in Infancy and Early Childhood

Entering the Social World: Socioemotional Development in Infancy and Early Childhood

Off to School: Cognitive and Physical Development in Middle Childhood

Expanding Social Horizons: Socioemotional Development in Middle Childhood

Rites of Passage: Physical and Cognitive Development in Adolescence

Moving into the Adult Social World: Socioemotional Development in Adolescence

Becoming an Adult: Physical, Cognitive, and Personality Development

Being with Others: Forming Relationships in Young and Middle Adulthood

Work and Leisure: Occupational and Lifestyle Issues in Young and Middle Adulthood

Making It in Midlife: The Biopsychosocial Challenges of Middle Adulthood

The Personal Context of Later Life: Physical, Cognitive, and Mental Health Issues

Social Aspects of Later Life: Psychosocial, Retirement, Relationship, and Societal Issues

The Final Passage: Dying and Bereavement

Filters

What began as a single fertilized egg has just separated into two distinct eggs. This indicates the formation of twins that has occurred during the period of development.