Question 1

Gene expression is affected by

Accepted Answer

A) only genetic factors. 
B) only environmental factors. 
C) both genetic and environmental factors. 
D) neither genetic nor environmental factors. 
A) only genetic factors. 
B) only environmental factors. 
C) both genetic and environmental factors. 
D) neither genetic nor environmental factors.

Question 2

Which statement concerning fragile X syndrome is true?

Accepted Answer

A) It is a non-sex-linked trait. 
B) It occurs as the result of an extra X chromosome. 
C) It involves a depletion in the number of duplications in the DNA code. 
D) It is more common in males. 
A) It is a non-sex-linked trait. 
B) It occurs as the result of an extra X chromosome. 
C) It involves a depletion in the number of duplications in the DNA code. 
D) It is more common in males.

Question 3

Kettlewell's research on the color of moths and their geographic location demonstrates the principle of

Accepted Answer

A) cultural evolution. 
B) social learning theory. 
C) natural selection. 
D) concordance. 
A) cultural evolution. 
B) social learning theory. 
C) natural selection. 
D) concordance.

Question 4

Tony and Tina can tell at birth that something is wrong with their son. Genetic tests indicate that the child has an extra chromosome in his cells and that chromosome is a sex chromosome. Which of the following does the child have?

Accepted Answer

A) Klinefelter syndrome 
B) Down syndrome 
C) Hemophilia 
D) Turner syndrome 
A) Klinefelter syndrome 
B) Down syndrome 
C) Hemophilia 
D) Turner syndrome

Question 5

Human chromosomes appear to contain about 25,000 _____.

Accepted Answer

The answer of Human chromosomes appear to contain about 25,000...

Question 6

Incomplete dominance occurs when

Accepted Answer

A) a recessive gene overpowers a dominant gene. 
B) there is a compromise between the effect of two genes. 
C) a dominant gene overpowers a recessive gene. 
D) genetic effects are overpowered by environmental factors. 
A) a recessive gene overpowers a dominant gene. 
B) there is a compromise between the effect of two genes. 
C) a dominant gene overpowers a recessive gene. 
D) genetic effects are overpowered by environmental factors.

Question 7

Which term is best defined as an infant's tendency to respond in predictable ways?

Accepted Answer

A) Genotype 
B) Temperament 
C) Codominance 
D) Crossing over 
A) Genotype 
B) Temperament 
C) Codominance 
D) Crossing over

Question 8

Which is the best example of a genotype?

Accepted Answer

A) Blonde hair 
B) High IQ 
C) Your general personality traits (e.g., being shy or aggressive) 
D) The genes on your X chromosome 
A) Blonde hair 
B) High IQ 
C) Your general personality traits (e.g., being shy or aggressive) 
D) The genes on your X chromosome

Question 9

An _____ gene-environment relationship exists when a child's genotype elicits specific reactions from others.

Accepted Answer

The answer of An _____ gene-environment relationship exists when a...

Question 10

Dr. Spock is using a microscope to observe a reproductive germ cell. He suddenly remarks, "That cell just underwent meiosis!" What has Dr. Spock just seen?

Accepted Answer

A) One cell ingesting another cell 
B) A cell dividing into new cells with twice as many chromosomes as the original reproductive cell 
C) The process of fertilization 
D) A cell dividing into new cells with half of the chromosomes of the original reproductive cell 
A) One cell ingesting another cell 
B) A cell dividing into new cells with twice as many chromosomes as the original reproductive cell 
C) The process of fertilization 
D) A cell dividing into new cells with half of the chromosomes of the original reproductive cell

Question 11

Which is the best example of codominance?

Accepted Answer

A) When a yellow flower and a blue flower are crossed and produce a yellow and blue flower. 
B) When a yellow flower and a blue flower are crossed and produce a green flower 
C) When a yellow flower and a blue flower are crossed and produce a purely blue flower. 
D) When a yellow flower and a blue flower are crossed and produce no flower. 
A) When a yellow flower and a blue flower are crossed and produce a yellow and blue flower. 
B) When a yellow flower and a blue flower are crossed and produce a green flower 
C) When a yellow flower and a blue flower are crossed and produce a purely blue flower. 
D) When a yellow flower and a blue flower are crossed and produce no flower.

Question 12

Fraternal twins are no more alike genetically than brothers and sisters born at different times.

Accepted Answer

A) True 
 B)False

Question 13

Your text reveals that if one identical twin is gay, there is almost a 50 percent chance that the other identical twin will also be gay. On the other hand, if a fraternal twin is schizophrenic, there is only about a 20 percent chance the other fraternal twin will be schizophrenic. The measure of likelihood that twins will share this mental illness in common is called a(n)

Accepted Answer

A) concordance rate. 
B) correlation coefficient. 
C) dominant trait. 
D) heritability factor. 
A) concordance rate. 
B) correlation coefficient. 
C) dominant trait. 
D) heritability factor.

Question 14

If green eyes are dominant and designated as "G" and gray eyes are recessive and designated as "g," probability would predict that if a couple each with a "Gg" eye color genotype had four children, _____ would have gray eyes.

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 4 
A) 0 
B) 1 
C) 2 
D) 4

Question 15

A genotype is a person's genetic make-up, while a _____ are the actual traits he or she expresses.

Accepted Answer

The answer of A genotype is a person's genetic make-up,...

Question 16

Concerning mental illness, people appear to inherit a predisposition for a disorder, not the actual disorder.

Accepted Answer

A) True 
 B)False

Question 17

_____ involves conducting DNA tests on the first cells after the mitosis of a fertilized egg.

Accepted Answer

A) Maternal blood sampling 
B) Chorionic villus sampling 
C) Amniocentesis 
D) Preimplantation genetic diagnosis 
A) Maternal blood sampling 
B) Chorionic villus sampling 
C) Amniocentesis 
D) Preimplantation genetic diagnosis

Question 18

If genes alone contribute to a trait, which of the following patterns of correlations would be observed?

Accepted Answer

A) 1.00 for identical twins raised together but a lower correlation for those raised apart 
B) 1.00 for both identical and fraternal twin pairs raised together but a lower correlation for those pairs raised apart 
C) 1.00 for identical twins and .50 for fraternal twins raised together and raised apart 
D) No significant correlation between identical twins or fraternal twins, regardless of whether they are raised together or apart 
A) 1.00 for identical twins raised together but a lower correlation for those raised apart 
B) 1.00 for both identical and fraternal twin pairs raised together but a lower correlation for those pairs raised apart 
C) 1.00 for identical twins and .50 for fraternal twins raised together and raised apart 
D) No significant correlation between identical twins or fraternal twins, regardless of whether they are raised together or apart

Question 19

Some researchers believe that techniques for calculating heritability attribute too much importance to genes.

Accepted Answer

A) True 
 B)False

Question 20

The cells of a normal zygote consist of a total of _____ chromosomes.

Accepted Answer

The answer of The cells of a normal zygote consist...

Gene expression is affected by

Which statement concerning fragile X syndrome is true?

Kettlewell's research on the color of moths and their geographic location demonstrates the principle of

Tony and Tina can tell at birth that something is wrong with their son. Genetic tests indicate that the child has an extra chromosome in his cells and that chromosome is a sex chromosome. Which of the following does the child have?

Human chromosomes appear to contain about 25,000 _____.

Incomplete dominance occurs when

Which term is best defined as an infant's tendency to respond in predictable ways?

Which is the best example of a genotype?

An _____ gene-environment relationship exists when a child's genotype elicits specific reactions from others.

Dr. Spock is using a microscope to observe a reproductive germ cell. He suddenly remarks, "That cell just underwent meiosis!" What has Dr. Spock just seen?

Which is the best example of codominance?

Fraternal twins are no more alike genetically than brothers and sisters born at different times.

If green eyes are dominant and designated as "G" and gray eyes are recessive and designated as "g," probability would predict that if a couple each with a "Gg" eye color genotype had four children, _____ would have gray eyes.

A genotype is a person's genetic make-up, while a _____ are the actual traits he or she expresses.

Concerning mental illness, people appear to inherit a predisposition for a disorder, not the actual disorder.

_____ involves conducting DNA tests on the first cells after the mitosis of a fertilized egg.

If genes alone contribute to a trait, which of the following patterns of correlations would be observed?

Some researchers believe that techniques for calculating heritability attribute too much importance to genes.

The cells of a normal zygote consist of a total of _____ chromosomes.

Understanding Life-Span Human Development

Theories of Human Development

Prenatal Development and Birth

Health and Physical Development

Sensation, Perception, and Attention

Cognition

Memory and Information Processing

Intelligence and Creativity

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Gender Roles and Sexuality

Social Cognition and Moral Development

Attachment and Social Relationships

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Developmental Psychopathology

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Exam 3: Genes, Environment, and Development

Gene expression is affected by

Which statement concerning fragile X syndrome is true?

Kettlewell's research on the color of moths and their geographic location demonstrates the principle of

Tony and Tina can tell at birth that something is wrong with their son. Genetic tests indicate that the child has an extra chromosome in his cells and that chromosome is a sex chromosome. Which of the following does the child have?

Human chromosomes appear to contain about 25,000 _____.

Incomplete dominance occurs when

Which term is best defined as an infant's tendency to respond in predictable ways?

Which is the best example of a genotype?

An _____ gene-environment relationship exists when a child's genotype elicits specific reactions from others.

Dr. Spock is using a microscope to observe a reproductive germ cell. He suddenly remarks, "That cell just underwent meiosis!" What has Dr. Spock just seen?

Which is the best example of codominance?

Fraternal twins are no more alike genetically than brothers and sisters born at different times.

If green eyes are dominant and designated as "G" and gray eyes are recessive and designated as "g," probability would predict that if a couple each with a "Gg" eye color genotype had four children, _____ would have gray eyes.

A genotype is a person's genetic make-up, while a _____ are the actual traits he or she expresses.

Concerning mental illness, people appear to inherit a predisposition for a disorder, not the actual disorder.

_____ involves conducting DNA tests on the first cells after the mitosis of a fertilized egg.

If genes alone contribute to a trait, which of the following patterns of correlations would be observed?

Some researchers believe that techniques for calculating heritability attribute too much importance to genes.

The cells of a normal zygote consist of a total of _____ chromosomes.

Understanding Life-Span Human Development

Theories of Human Development

Prenatal Development and Birth

Health and Physical Development

Sensation, Perception, and Attention

Cognition

Memory and Information Processing

Intelligence and Creativity

Language and Education

Self and Personality

Gender Roles and Sexuality

Social Cognition and Moral Development

Attachment and Social Relationships

The Family

Developmental Psychopathology

The Final Challenge: Death and Dying

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