Question 1

The Human Genome Project provided evidence to show that humans have approximately __________ genes.

Accepted Answer

A)  200 million 
B)  30 million 
C)  140 thousand 
D)  28 thousand 
A)  200 million 
B)  30 million 
C)  140 thousand 
D)  28 thousand

Question 2

During cell division, the DNA "unzips" down the middle and because __________, two identical copies will be produced.

Accepted Answer

A)  the links have been broken 
B)  each half of the nucleotide serves as a blueprint 
C)  of meiosis 
D)  the rungs of DNA have a phenomenal ability to repair themselves 
A)  the links have been broken 
B)  each half of the nucleotide serves as a blueprint 
C)  of meiosis 
D)  the rungs of DNA have a phenomenal ability to repair themselves

Question 3

_________ refers to the case in which the allele from one parent is biochemically silenced and only the allele from the other parent affects the phenotype.

Accepted Answer

A)  Polygenic inheritance 
B)  Incomplete dominance 
C)  Codominance 
D)  Genomic imprinting 
A)  Polygenic inheritance 
B)  Incomplete dominance 
C)  Codominance 
D)  Genomic imprinting

Question 4

The principal difference between Klinefelter's syndrome and Turner's syndrome is that

Accepted Answer

A)  Klinefelter's syndrome has a normal arrangement of sex chromosomes, whereas Turner's syndrome does not. 
B)  Turner's syndrome affects females whereas Klinefelter's syndrome affects males. 
C)  Klinefelter's syndrome is an autosomal disorder whereas Turner's syndrome is a disorder of the sex chromosomes. 
D)  Klinefelter's syndrome is the male opposite of the female version, Turner's syndrome. 
A)  Klinefelter's syndrome has a normal arrangement of sex chromosomes, whereas Turner's syndrome does not. 
B)  Turner's syndrome affects females whereas Klinefelter's syndrome affects males. 
C)  Klinefelter's syndrome is an autosomal disorder whereas Turner's syndrome is a disorder of the sex chromosomes. 
D)  Klinefelter's syndrome is the male opposite of the female version, Turner's syndrome.

Question 5

Rachel and Ross are expecting a child. Rachel has brown eyes, as do both of her parents. Ross, on the other hand, has blue eyes. It is more likely that their child:

Accepted Answer

A)  Will have blue eyes 
B)  Will have green eyes 
C)  Will have brown eyes 
D)  None of these alternatives are correct 
A)  Will have blue eyes 
B)  Will have green eyes 
C)  Will have brown eyes 
D)  None of these alternatives are correct

Question 6

According to the Human Genome Project, _____ of our DNA is code for proteins; in contrast, _____ of the DNA of bacteria codes for protein.

Accepted Answer

A)  2%; 5% 
B)  5%; 2% 
C)  2%; 85% 
D)  85%; 5% 
A)  2%; 5% 
B)  5%; 2% 
C)  2%; 85% 
D)  85%; 5%

Question 7

Winston has a sex-chromosome abnormality. He has a very low level of blood protein essential for blood clotting. Based on this information, it is more likely that he suffers from:

Accepted Answer

A)  Cystic fibrosis 
B)  Turner's syndrome 
C)  Hemophilia 
D)  Klinefelter's syndrome 
A)  Cystic fibrosis 
B)  Turner's syndrome 
C)  Hemophilia 
D)  Klinefelter's syndrome

Question 8

DNA is found in

Accepted Answer

A)  cytoplasm. 
B)  the cell membrane. 
C)  proteins. 
D)  chromosomes. 
A)  cytoplasm. 
B)  the cell membrane. 
C)  proteins. 
D)  chromosomes.

Question 9

The purpose of the Human Genome Project is to

Accepted Answer

A)  harvest organs for human transplant patients. 
B)  map and sequence the human genome. 
C)  clone human genes to aid in the production of synthetic hormones such as insulin and human growth hormone. 
D)  target specific genes so parents have greater control of the offspring produced by in vitro fertilization procedures. 
A)  harvest organs for human transplant patients. 
B)  map and sequence the human genome. 
C)  clone human genes to aid in the production of synthetic hormones such as insulin and human growth hormone. 
D)  target specific genes so parents have greater control of the offspring produced by in vitro fertilization procedures.

Question 10

On average, how many potentially lethal genes for recessive traits does an individual carry?

Accepted Answer

A)  75 
B)  4 
C)  15 
D)  225 
A)  75 
B)  4 
C)  15 
D)  225

Question 11

Fragile X syndrome results from the

Accepted Answer

A)  deletion of a small amount of genetic material from chromosome 5. 
B)  absence of a protein normally found in all cells, most notably, in neurons. 
C)  existence of an extra chromosome. 
D)  deletion of a chromosome. 
A)  deletion of a small amount of genetic material from chromosome 5. 
B)  absence of a protein normally found in all cells, most notably, in neurons. 
C)  existence of an extra chromosome. 
D)  deletion of a chromosome.

Question 12

In his studies of the processes of inheritance, Mendel first mated a purple-flowered pea plant with a white-flowered pea plant, and then mated the new offspring with each other. What did the second generation offspring look like?

Accepted Answer

A)  All were purple-flowered. 
B)  Half were white-flowered and half were purple-flowered. 
C)  All were lavender. 
D)  One fourth were white-flowered and three fourths were purple-flowered. 
A)  All were purple-flowered. 
B)  Half were white-flowered and half were purple-flowered. 
C)  All were lavender. 
D)  One fourth were white-flowered and three fourths were purple-flowered.

Question 13

The process by which a parent cell produces two identical child cells by the chromosomes doubling in number, then dividing in two is known as

Accepted Answer

A)  meiosis. 
B)  mitosis. 
C)  crossing over. 
D)  mutation. 
A)  meiosis. 
B)  mitosis. 
C)  crossing over. 
D)  mutation.

Question 14

The job of __________ is to guide the production of proteins; the job of __________ is to control the activities of the structural genes.

Accepted Answer

A)  RNA; DNA 
B)  alleles; chromosomes 
C)  structural genes; regulator genes 
D)  meiosis; mitosis 
A)  RNA; DNA 
B)  alleles; chromosomes 
C)  structural genes; regulator genes 
D)  meiosis; mitosis

Question 15

Non-twin brothers and sisters share approximately the same number of genes as

Accepted Answer

A)  dizygotic twins. 
B)  monozygotic twins. 
C)  a grandfather and his grandchild. 
D)  an aunt and her nephew. 
A)  dizygotic twins. 
B)  monozygotic twins. 
C)  a grandfather and his grandchild. 
D)  an aunt and her nephew.

Question 16

If one parent carries two dominant genes responsible for a dominant trait (DD) and the other parent carries two recessive genes for the trait (dd), what is the likelihood of their child exhibiting the dominant aspect of the trait?

Accepted Answer

A)  25% 
B)  50% 
C)  75% 
D)  100% 
A)  25% 
B)  50% 
C)  75% 
D)  100%

Question 17

The principal difference between Turner's females and 47,XYY males is that

Accepted Answer

A)  Turner's females have a normal arrangement of sex chromosomes, whereas 47,XYY males do not. 
B)  Turner's syndrome results from an extra chromosome whereas 47,XYY males result from the deletion of a chromosome. 
C)  47,XYY males is an autosomal disorder whereas Turner's syndrome is a disorder of the sex chromosomes. 
D)  47,XYY syndrome is the opposite of the female version, Turner's syndrome. 
A)  Turner's females have a normal arrangement of sex chromosomes, whereas 47,XYY males do not. 
B)  Turner's syndrome results from an extra chromosome whereas 47,XYY males result from the deletion of a chromosome. 
C)  47,XYY males is an autosomal disorder whereas Turner's syndrome is a disorder of the sex chromosomes. 
D)  47,XYY syndrome is the opposite of the female version, Turner's syndrome.

Question 18

In Scarr's dynamic model of gene-environment interaction, a child who drifts toward niches in the environment which fit her genotype illustrates

Accepted Answer

A)  a passive gene-environment relationship. 
B)  an active gene-environment relationship. 
C)  an evocative gene-environment relationship. 
D)  all of the responses are accurate. 
A)  a passive gene-environment relationship. 
B)  an active gene-environment relationship. 
C)  an evocative gene-environment relationship. 
D)  all of the responses are accurate.

Question 19

Which of the following principles was not outlined in Mendel's theory?

Accepted Answer

A)  Segregation 
B)  Independent assortment 
C)  Polygenic inheritance 
D)  Dominance 
A)  Segregation 
B)  Independent assortment 
C)  Polygenic inheritance 
D)  Dominance

Question 20

Alleles are

Accepted Answer

A)  a stair-like, double-helix molecule that carries genetic information on chromosomes. 
B)  a segment of DNA on the chromosome. 
C)  genes for the same trait located in the same place on a pair of chromosomes. 
D)  structural genes only. 
A)  a stair-like, double-helix molecule that carries genetic information on chromosomes. 
B)  a segment of DNA on the chromosome. 
C)  genes for the same trait located in the same place on a pair of chromosomes. 
D)  structural genes only.

The Human Genome Project provided evidence to show that humans have approximately __________ genes.

During cell division, the DNA "unzips" down the middle and because __________, two identical copies will be produced.

_________ refers to the case in which the allele from one parent is biochemically silenced and only the allele from the other parent affects the phenotype.

The principal difference between Klinefelter's syndrome and Turner's syndrome is that

Rachel and Ross are expecting a child. Rachel has brown eyes, as do both of her parents. Ross, on the other hand, has blue eyes. It is more likely that their child:

According to the Human Genome Project, _ of our DNA is code for proteins; in contrast, _ of the DNA of bacteria codes for protein.

Winston has a sex-chromosome abnormality. He has a very low level of blood protein essential for blood clotting. Based on this information, it is more likely that he suffers from:

DNA is found in

The purpose of the Human Genome Project is to

On average, how many potentially lethal genes for recessive traits does an individual carry?

Fragile X syndrome results from the

In his studies of the processes of inheritance, Mendel first mated a purple-flowered pea plant with a white-flowered pea plant, and then mated the new offspring with each other. What did the second generation offspring look like?

The process by which a parent cell produces two identical child cells by the chromosomes doubling in number, then dividing in two is known as

The job of is to guide the production of proteins; the job of is to control the activities of the structural genes.

Non-twin brothers and sisters share approximately the same number of genes as

If one parent carries two dominant genes responsible for a dominant trait (DD) and the other parent carries two recessive genes for the trait (dd), what is the likelihood of their child exhibiting the dominant aspect of the trait?

The principal difference between Turner's females and 47,XYY males is that

In Scarr's dynamic model of gene-environment interaction, a child who drifts toward niches in the environment which fit her genotype illustrates

Which of the following principles was not outlined in Mendel's theory?

Alleles are

Background and Theories

Research Methods

Prenatal Development

Physical Development: Birth, Motor Skills, and Growth

Neural and Brain Development

Language Development

Sensory and Perceptual Development

Cognitive Development: Piagetian and Vygotskian Approaches

Cognitive Development: The Information-Processing Approach

Intelligence and Schooling

Early Social and Emotional Development

Development of the Self

Moral Development

Families and Peers

Gender-Role Development and Sex Differences

Filters

Exam 3: Genetics: The Biological Context of Development

The Human Genome Project provided evidence to show that humans have approximately __________ genes.

During cell division, the DNA "unzips" down the middle and because __________, two identical copies will be produced.

_________ refers to the case in which the allele from one parent is biochemically silenced and only the allele from the other parent affects the phenotype.

The principal difference between Klinefelter's syndrome and Turner's syndrome is that

Rachel and Ross are expecting a child. Rachel has brown eyes, as do both of her parents. Ross, on the other hand, has blue eyes. It is more likely that their child:

According to the Human Genome Project, _____ of our DNA is code for proteins; in contrast, _____ of the DNA of bacteria codes for protein.

Winston has a sex-chromosome abnormality. He has a very low level of blood protein essential for blood clotting. Based on this information, it is more likely that he suffers from:

DNA is found in

The purpose of the Human Genome Project is to

On average, how many potentially lethal genes for recessive traits does an individual carry?

Fragile X syndrome results from the

In his studies of the processes of inheritance, Mendel first mated a purple-flowered pea plant with a white-flowered pea plant, and then mated the new offspring with each other. What did the second generation offspring look like?

The process by which a parent cell produces two identical child cells by the chromosomes doubling in number, then dividing in two is known as

The job of __________ is to guide the production of proteins; the job of __________ is to control the activities of the structural genes.

Non-twin brothers and sisters share approximately the same number of genes as

If one parent carries two dominant genes responsible for a dominant trait (DD) and the other parent carries two recessive genes for the trait (dd), what is the likelihood of their child exhibiting the dominant aspect of the trait?

The principal difference between Turner's females and 47,XYY males is that

In Scarr's dynamic model of gene-environment interaction, a child who drifts toward niches in the environment which fit her genotype illustrates

Which of the following principles was not outlined in Mendel's theory?

Alleles are

Background and Theories

Research Methods

Prenatal Development

Physical Development: Birth, Motor Skills, and Growth

Neural and Brain Development

Language Development

Sensory and Perceptual Development

Cognitive Development: Piagetian and Vygotskian Approaches

Cognitive Development: The Information-Processing Approach

Intelligence and Schooling

Early Social and Emotional Development

Development of the Self

Moral Development

Families and Peers

Gender-Role Development and Sex Differences

Filters

According to the Human Genome Project, _ of our DNA is code for proteins; in contrast, _ of the DNA of bacteria codes for protein.

The job of is to guide the production of proteins; the job of is to control the activities of the structural genes.