Question 1

Which behaviour genetics research result provides the BEST evidence of the importance of environmental factors in the development of a particular trait?

Accepted Answer

A)   An adoption study shows that the correlation between adoptive children and their adoptive parents is higher than is the correlation between the children and their biological parents.
B)   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.
C)   A twin study shows that the correlation between identical twins is higher than is the correlation between same-sex fraternal twins.
D)   A family study shows that the correlation between siblings reared together is higher than is the correlation between siblings reared apart.

Question 2

Heritability estimates for IQ appear to be:

Accepted Answer

A)   stable across the SES spectrum.
B)   higher for those of high SES than for those of low SES.
C)   higher for those of low SES than for those of high SES.
D)   unpredictable across the SES spectrum.

Question 3

During synaptogenesis, each neuron forms synapses with approximately how many other neurons?

Accepted Answer

A)   tens
B)   hundreds
C)   thousands
D)   millions

Question 4

_____ is a normal part of development, which is evident via _____.

Accepted Answer

A)   Hyperconnectivity; synaptic pruning
B)   Cell death; synaptic pruning
C)   Hyperconnectivity; plasticity
D)   Cell death; synesthesia

Question 5

In an individual with poor myelination, the MOST likely cause would be found in his:

Accepted Answer

A)   glial cells.
B)   interneurons.
C)   synapses.
D)   axon terminals.

Question 6

Infant taste preferences:

Accepted Answer

A)   are innate.
B)   are learned in the first few weeks of life.
C)   differ from adult taste preferences.
D)   most likely do not have an evolutionary origin.

Question 7

A study that examines whether adopted children's scores on a particular measure are more highly correlated with their adoptive parents' scores or their biological parents' scores is referred to as a(n)  _____ study.

Accepted Answer

A)   adoption
B)   adoptive twin
C)   twin
D)   heritability

Question 8

Changes in the brain's electrical activity in response to a particular stimulus are referred to as:

Accepted Answer

A)   functional magnetic resonance images.
B)   electrophysiological recordings.
C)   norms of reaction.
D)   event-related potentials.

Question 9

Which statement about sex determination is TRUE?

Accepted Answer

A)   The presence of a single X chromosome makes an individual female.
B)   The presence of a single X chromosome makes an individual male.
C)   The presence of a Y chromosome makes an individual female.
D)   The presence of a Y chromosome makes an individual male.

Question 10

Experience-_____ plasticity allows an individual's personal experiences to shape brain development.

Accepted Answer

A)   dependent
B)   independent
C)   expectant
D)   protected

Question 11

The weight of adopted children is:

Accepted Answer

A)   more strongly related to the weight of their adoptive parents than to the weight of their biological parents.
B)   more strongly related to the weight of their biological parents than to the weight of their adoptive parents.
C)   unrelated to either the weight of their biological parents or the weight of their adoptive parents.
D)   equally related to the weight of their biological and adoptive parents.

Question 12

The superior ability to discriminate changes in musical pitch of adults who were born blind is evidence of:

Accepted Answer

A)   a sensitive period.
B)   experience-dependent plasticity.
C)   experience-expectant plasticity.
D)   myelination.

Question 13

Pamela and her mother both have a strong aversion to cheese. Consider these paths. Path A: Pamela genetically inherited "cheese aversion" from her mother. Path B: Pamela's mother's own genetically inherited "cheese aversion" led her to create a "cheese aversion" environment in which Pamela developed. Path C: Pamela's mother's aversion to cheese caused Pamela's genotype to change. Which path(s)  could have caused this similarity between Pamela and her mother in their strong aversion to cheese?

Accepted Answer

A)   both paths A and B
B)   both paths A and C
C)   both paths B and C
D)   path B only

Question 14

The folds of the cerebral cortex:

Accepted Answer

A)   hold the myelin that increases the efficiency of the neurons.
B)   permit the brain to be constantly bathed in protective fluid.
C)   facilitate the communication of its different lobes.
D)   allow more cortex to be packed into a small area.

Question 15

Which factor is NOT a possible reason of smaller brain size among infants from low SES families?

Accepted Answer

A)   the level of stress in the home
B)   environmental toxins
C)   prenatal nutrition
D)   a richness-deprived environment

Question 16

This provincial genetic screening program is offered in every Canadian province.

Accepted Answer

A)   carrier genetic testing
B)   newborn screening
C)   prenatal testing
D)   prenatal diagnostic screening

Question 17

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 genotype

Question 18

Describe the types of brain plasticity.

Accepted Answer

Plasticity is the capacity of the brain ...

Question 19

The three main components of neurons are:

Accepted Answer

A)   axons, interneurons, and dendrites.
B)   cell bodies, glials, and synapses.
C)   dendrites, cell bodies, and axons.
D)   cell bodies, axons, and myelin.

Question 20

Disease W is a recessive gene disease. Individuals with _____ will suffer from disease W.

Accepted Answer

A)   one disease W gene and one healthy gene
B)   two disease W genes
C)   two healthy genes
D)   two disease W genes and one healthy gene

Exam 3: Biology and Behaviour

Epigenetics is MOST relevant to which relationship?

Correct Answer
verified

The folds of the cerebral cortex:

Correct Answer
verified

In an individual with poor myelination, the MOST likely cause would be found in his:

Correct Answer
verified

The weight of adopted children is:

Correct Answer
verified

Disease W is a recessive gene disease. Individuals with _____ will suffer from disease W.

Correct Answer
verified

During synaptogenesis, each neuron forms synapses with approximately how many other neurons?

Correct Answer
verified

Experience-_____ plasticity allows an individual's personal experiences to shape brain development.

Correct Answer
verified

Which statement about sex determination is TRUE?

Correct Answer
verified

A study that examines whether adopted children's scores on a particular measure are more highly correlated with their adoptive parents' scores or their biological parents' scores is referred to as a(n) _____ study.

Correct Answer
verified

This provincial genetic screening program is offered in every Canadian province.

Correct Answer
verified

Infant taste preferences:

Correct Answer
verified

_ is a normal part of development, which is evident via _.

Correct Answer
verified

Heritability estimates for IQ appear to be:

Correct Answer
verified

Which behaviour genetics research result provides the BEST evidence of the importance of environmental factors in the development of a particular trait?

Correct Answer
verified

Which factor is NOT a possible reason of smaller brain size among infants from low SES families?

Correct Answer
verified

The superior ability to discriminate changes in musical pitch of adults who were born blind is evidence of:

Correct Answer
verified

Changes in the brain's electrical activity in response to a particular stimulus are referred to as:

Correct Answer
verified

The three main components of neurons are:

Correct Answer
verified

Correct Answer
verified

Describe the types of brain plasticity.

Correct Answer
verified
Plasticity is the capacity of the brain ...
View Answer

Exam 3: Biology and Behaviour

Epigenetics is MOST relevant to which relationship?

Correct AnswerverifiedShow Answer

The folds of the cerebral cortex:

Correct AnswerverifiedShow Answer

In an individual with poor myelination, the MOST likely cause would be found in his:

Correct AnswerverifiedShow Answer

The weight of adopted children is:

Correct AnswerverifiedShow Answer

Disease W is a recessive gene disease. Individuals with _____ will suffer from disease W.

Correct AnswerverifiedShow Answer

During synaptogenesis, each neuron forms synapses with approximately how many other neurons?

Correct AnswerverifiedShow Answer

Experience-_____ plasticity allows an individual's personal experiences to shape brain development.

Correct AnswerverifiedShow Answer

Which statement about sex determination is TRUE?

Correct AnswerverifiedShow Answer

A study that examines whether adopted children's scores on a particular measure are more highly correlated with their adoptive parents' scores or their biological parents' scores is referred to as a(n) _____ study.

Correct AnswerverifiedShow Answer

This provincial genetic screening program is offered in every Canadian province.

Correct AnswerverifiedShow Answer

Infant taste preferences:

Correct AnswerverifiedShow Answer

_____ is a normal part of development, which is evident via _____.

Correct AnswerverifiedShow Answer

Heritability estimates for IQ appear to be:

Correct AnswerverifiedShow Answer

Which behaviour genetics research result provides the BEST evidence of the importance of environmental factors in the development of a particular trait?

Correct AnswerverifiedShow Answer

Which factor is NOT a possible reason of smaller brain size among infants from low SES families?

Correct AnswerverifiedShow Answer

The superior ability to discriminate changes in musical pitch of adults who were born blind is evidence of:

Correct AnswerverifiedShow Answer

Changes in the brain's electrical activity in response to a particular stimulus are referred to as:

Correct AnswerverifiedShow Answer

The three main components of neurons are:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Describe the types of brain plasticity.

Correct AnswerverifiedPlasticity is the capacity of the brain ...View AnswerShow Answer

Correct Answer
verified

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Correct Answer
verified

_ is a normal part of development, which is evident via _.

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

Correct Answer
verified

Correct Answer
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Correct Answer
verified
Plasticity is the capacity of the brain ...
View Answer