Question 1

The impulsive, irrational behavior characteristic of adolescents may be due to

Accepted Answer

A)   an underdeveloped prefrontal cortex.
B)   a steady decrease in white matter.
C)   underproduction of association areas.
D)   synaptic pruning.E) All of the above
F) B) and C)

Question 2

In an adoption study designed to examine genetic and environmental influences, the correlation between _____ on a particular trait is compared to the correlation between _____ on that trait.

Accepted Answer

A)   adopted children and their adoptive parents; biological children and their biological parents
B)   fraternal twins raised apart; identical twins raised apart
C)   identical twins raised apart; identical twins raised together
D)   adopted children and their adoptive parents; adopted children and their biological parentsE) A) and B)
F) A) and C)

Question 3

Epigenetics is MOST relevant to which relationship?

Accepted Answer

A)   child's environment  child's phenotype
B)   child's phenotype  child's environment
C)   child's genotype  child's phenotype
D)   child's environment child's genotypeE) A) and B)
F) A) and C)

Question 4

Synapse elimination generally occurs as a result of

Accepted Answer

A)   brain damage.
B)   nutritional deficiencies.
C)   normal overabundance of synapses.
D)   mental retardation.E) B) and C)
F) A) and D)

Question 5

Kevin and Rita are concerned that their 3-year-old son James sometimes eats what appears to be too little and sometimes eats what appears to be too much. They should

Accepted Answer

A)   allow James to have complete control over the types of food he eats.
B)   punish James for not finishing all the food on his plate.
C)   alter the home environment in ways that promote positive health outcomes for James.
D)   reward James with foods he likes, such as cookies, for eating nutritious foods.E) None of the above
F) A) and C)

Question 6

Cole was born with nonfunctioning hands and must use his feet for most tasks that are typically done with one's hands. Considering experience-expectant plasticity, the MOST likely thing that will happen to the area of Cole's cortex that would normally process sensory information from the hands is that the area will

Accepted Answer

A)   reorganize to process sensory information from his feet.
B)   atrophy as a result of synaptic pruning.
C)   interfere with the functioning of nearby areas of the brain.
D)   disintermediate.E) A) and C)
F) B) and C)

Question 7

_____ lead(s)  to extremely high rates of fetal and infant mortality.

Accepted Answer

A)   Edwards syndrome
B)   Patau syndrome
C)   Both Edwards syndrome and Patau syndrome
D)   Neither Edwards syndrome nor Patau syndromeE) None of the above
F) B) and C)

Question 8

A large study of MZ and DZ twin pairs across multiple countries found that the correlations in IQ between co-twins _____ with age for DZ twins and _____ with age for MZ twins.

Accepted Answer

A)   decreased; increased
B)   increased; decreased
C)   increased; stayed the same
D)   decreased; stayed the sameE) None of the above
F) C) and D)

Question 9

Genes code for

Accepted Answer

A)   the production of proteins.
B)   specific behaviors.
C)   the construction of DNA.
D)   traits.E) A) and C)
F) A) and B)

Question 10

A change in a section of DNA that is the result of either a random, spontaneous error or environmental factors is referred to as

Accepted Answer

A)   polygenic inheritance.
B)   a dominant-recessive pattern.
C)   random assortment.
D)   a mutation.E) A) and D)
F) C) and D)

Question 11

The amount of variability of a trait that is due to genetic and environmental factors is referred to as

Accepted Answer

A)   heritability.
B)   inheritance.
C)   the genotype.
D)   shared genes.E) A) and C)
F) None of the above

Question 12

Information from multiple sensory systems is processed and integrated in the

Accepted Answer

A)   frontal lobe.
B)   corpus callosum.
C)   glial cells.
D)   association areas.E) C) and D)
F) B) and C)

Question 13

Which condition is a direct effect of malnutrition?

Accepted Answer

A)   brain damage
B)   poverty
C)   delayed intellectual development
D)   decreased expectations of child from adultsE) B) and D)
F) A) and B)

Question 14

Which statement describes evidence for the importance of environmental factors in the development of a particular trait?

Accepted Answer

A)   An adoptive twin study shows that the correlation between identical twins who grew up together is higher than is the correlation between identical twins who grew up apart.
B)   A twin study shows that the correlation between identical twins is higher than is the correlation between fraternal twins.
C)   An adoption study shows that the correlation between adoptive children and their biological parents is higher than is the correlation between the children and their adoptive parents.
D)   All of the statements describe such evidence.E) All of the above
F) A) and B)

Question 15

Which statement about neurogenesis is TRUE?

Accepted Answer

A)   It concludes at around 18 weeks after conception.
B)   It is predetermined by genetics throughout life.
C)   It increases and decreases depending on the environment.
D)   None of these statements is true.E) None of the above
F) A) and B)

Question 16

Behavior genetics rests in part on the premise that to the extent genetic factors are important, individuals who _____ should be more similar than are individuals who _____.

Accepted Answer

A)   are closely related; are unrelated
B)   are unrelated; are closely related
C)   have lived together; have not lived together
D)   have not lived together; have lived togetherE) A) and B)
F) B) and C)

Question 17

In regard to the chromosomes that parents pass on to their offspring, parents pass on

Accepted Answer

A)   exact copies of their chromosomes to their offspring.
B)   exact copies of their chromosomes to their offspring, except when a mutation occurs in the offspring's genes.
C)   chromosomes that are constituted differently than their own because of random assortment and crossing over.
D)   exact copies of their chromosomes to their offspring, but the genes are expressed differently because of patterns of dominance.E) All of the above
F) None of the above

Question 18

Which statement about gene expression is TRUE?

Accepted Answer

A)   All genes possessed by an individual are expressed continuously.
B)   All genes contained in a particular cell are expressed in that cell, but not all genes are contained in every cell.
C)   Some genes are expressed for only a short period of the cell's life.
D)   All genes possessed by an individual are expressed at some point in the individual's life.E) A) and B)
F) A) and C)

Question 19

Which lobe of the cerebral cortex is MOST important for the processing of emotion and auditory information?

Accepted Answer

A)   temporal
B)   parietal
C)   frontal
D)   occipitalE) None of the above
F) B) and D)

Question 20

Dr. Spock is interested in examining genetic and environmental influences on enjoyment of reading. She has decided to include fraternal twins in her study. If she finds that the correlation between fraternal twins on enjoyment of reading is higher than is the correlation between _____ on this measure, then she has evidence for the influence of _____.

Accepted Answer

A)   identical twins; environment and genetics
B)   nontwin siblings; environment and genetics
C)   fraternal twins reared apart; environment
D)   identical twins reared apart; geneticsE) A) and B)
F) A) and C)

Exam 3: Biology and Behavior

Which statement describes evidence for the importance of environmental factors in the development of a particular trait?

Correct Answer
verified

The impulsive, irrational behavior characteristic of adolescents may be due to

Correct Answer
verified

In an adoption study designed to examine genetic and environmental influences, the correlation between _ on a particular trait is compared to the correlation between _ on that trait.

Correct Answer
verified

A large study of MZ and DZ twin pairs across multiple countries found that the correlations in IQ between co-twins _ with age for DZ twins and _ with age for MZ twins.

Correct Answer
verified

A change in a section of DNA that is the result of either a random, spontaneous error or environmental factors is referred to as

Correct Answer
verified

Which condition is a direct effect of malnutrition?

Correct Answer
verified

In regard to the chromosomes that parents pass on to their offspring, parents pass on

Correct Answer
verified

Correct Answer
verified

The amount of variability of a trait that is due to genetic and environmental factors is referred to as

Correct Answer
verified

Correct Answer
verified

_____ lead(s) to extremely high rates of fetal and infant mortality.

Correct Answer
verified

Genes code for

Correct Answer
verified

Information from multiple sensory systems is processed and integrated in the

Correct Answer
verified

Epigenetics is MOST relevant to which relationship?

Correct Answer
verified

Which statement about gene expression is TRUE?

Correct Answer
verified

Behavior genetics rests in part on the premise that to the extent genetic factors are important, individuals who _ should be more similar than are individuals who _.

Correct Answer
verified

Which lobe of the cerebral cortex is MOST important for the processing of emotion and auditory information?

Correct Answer
verified

Which statement about neurogenesis is TRUE?

Correct Answer
verified

Synapse elimination generally occurs as a result of

Correct Answer
verified

Kevin and Rita are concerned that their 3-year-old son James sometimes eats what appears to be too little and sometimes eats what appears to be too much. They should

Correct Answer
verified

Exam 3: Biology and Behavior

Which statement describes evidence for the importance of environmental factors in the development of a particular trait?

Correct AnswerverifiedShow Answer

The impulsive, irrational behavior characteristic of adolescents may be due to

Correct AnswerverifiedShow Answer

In an adoption study designed to examine genetic and environmental influences, the correlation between _____ on a particular trait is compared to the correlation between _____ on that trait.

Correct AnswerverifiedShow Answer

A large study of MZ and DZ twin pairs across multiple countries found that the correlations in IQ between co-twins _____ with age for DZ twins and _____ with age for MZ twins.

Correct AnswerverifiedShow Answer

A change in a section of DNA that is the result of either a random, spontaneous error or environmental factors is referred to as

Correct AnswerverifiedShow Answer

Which condition is a direct effect of malnutrition?

Correct AnswerverifiedShow Answer

In regard to the chromosomes that parents pass on to their offspring, parents pass on

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The amount of variability of a trait that is due to genetic and environmental factors is referred to as

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

_____ lead(s) to extremely high rates of fetal and infant mortality.

Correct AnswerverifiedShow Answer

Genes code for

Correct AnswerverifiedShow Answer

Information from multiple sensory systems is processed and integrated in the

Correct AnswerverifiedShow Answer

Epigenetics is MOST relevant to which relationship?

Correct AnswerverifiedShow Answer

Which statement about gene expression is TRUE?

Correct AnswerverifiedShow Answer

Behavior genetics rests in part on the premise that to the extent genetic factors are important, individuals who _____ should be more similar than are individuals who _____.

Correct AnswerverifiedShow Answer

Which lobe of the cerebral cortex is MOST important for the processing of emotion and auditory information?

Correct AnswerverifiedShow Answer

Which statement about neurogenesis is TRUE?

Correct AnswerverifiedShow Answer

Synapse elimination generally occurs as a result of

Correct AnswerverifiedShow Answer

Kevin and Rita are concerned that their 3-year-old son James sometimes eats what appears to be too little and sometimes eats what appears to be too much. They should

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

In an adoption study designed to examine genetic and environmental influences, the correlation between _ on a particular trait is compared to the correlation between _ on that trait.

Correct Answer
verified

A large study of MZ and DZ twin pairs across multiple countries found that the correlations in IQ between co-twins _ with age for DZ twins and _ with age for MZ twins.

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Behavior genetics rests in part on the premise that to the extent genetic factors are important, individuals who _ should be more similar than are individuals who _.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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