Question 1

Plasticity is highest and thus recovery from brain damage is MOST likely when _____ is occurring.

Accepted Answer

A)   neuron migration
B)   neurogenesis
C)   cell differentiation
D)   synaptic pruning

Question 2

For twins who grow up together, the degree of similarity of the environment is assumed to be equal. This is known as the

Accepted Answer

A)   equal environments assumption.
B)   heritability assumption.
C)   population heritability hypothesis.
D)   genome-wide association.

Question 3

Jacquelynne is 6 months pregnant and is having blood drawn for genetic testing of her baby. What type of testing is this?

Accepted Answer

A)   prenatal screening test
B)   PKU testing
C)   newborn screening
D)   pharmacogenomics testing

Question 4

Which behavior 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 5

Which factor is a problem with the assumption that the similarities of twins in the Minnesota Study are due to genetic factors?

Accepted Answer

A)   Not all of the twins were identical.
B)   The environments of the twins may have been similar.
C)   The adoptive parents and siblings were not compared to the biological twins and siblings.
D)   All of these factors are problems with the assumption.

Question 6

_____ is a variant of the MRI that uses the rate of water diffusion to model 3-D spatial location in order to study how brain networks develop.

Accepted Answer

A)   EEG
B)   ERP
C)   DTI
D)   fMRI

Question 7

The majority of human genes are devoted to making human beings

Accepted Answer

A)   male or female.
B)   primates.
C)   animals.
D)   humans.

Question 8

Deaf individuals' responses to peripheral visual stimuli are evidence of

Accepted Answer

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

Question 9

Which property is NOT a mechanism for genetic inheritance of disease?

Accepted Answer

A)   combined action of multiple genes
B)   dominant-recessive patterns
C)   sex-linked inheritance
D)   hormonal abnormalities

Question 10

Which statement about sex determination is TRUE?

Accepted Answer

A)   The mother's egg always determines the sex of the offspring.
B)   The father's sperm always determines the sex of the offspring.
C)   Sometimes it is the mother's egg and sometimes it is the father's sperm that determines the sex of the offspring.
D)   The mother's egg and the father's sperm jointly determine the sex of the offspring.

Question 11

_____ genes are expressed when an individual is heterozygous for a trait that follows a Mendelian inheritance pattern.

Accepted Answer

A)   Recessive
B)   Dominant
C)   Polygenic
D)   Allele

Question 12

Sex-linked disorders associated with the X chromosome are

Accepted Answer

A)   more likely to affect males.
B)   more likely to affect females.
C)   equally likely to affect males and females.
D)   a result of fragile X syndrome.

Question 13

Which infant is at an increased risk for delayed or slowed brain growth?

Accepted Answer

A)   Gerardo, who is Latino and whose parents are middle-class
B)   Bree, who is Caucasian and whose parents are of high SES
C)   Ami, who is Asian and whose parents are middle-class
D)   Juan, who is Latino and whose parents are of low SES

Question 14

Michael and Scott are identical twin 7-year-old boys. Michael spends a great deal of time learning to master the game of chess while Scott plays tennis, golf, and baseball. Michael's and Scott's neural connections will develop differently through experience-_____ processes.

Accepted Answer

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

Question 15

Provide a detailed description of how an individual's sex is determined. Be sure to explain the determination from the moment of conception to the "molding" of maleness or femaleness.

Accepted Answer

An individual's sex is determined by the...

Question 16

Traits that are influenced by genetic factors are considered

Accepted Answer

A)   multifactorial.
B)   heritable.
C)   sex-linked.
D)   environmental.

Question 17

A twin study is conducted to examine the role of genetics and environment on the fondness of individuals for chocolate. Which result would lead to the conclusion that genetic factors are important in the development of this trait?

Accepted Answer

A)   Twins who have lived together are more similar on the trait than are twins who have lived apart.
B)   Twins who have lived apart are more similar on the trait than are twins who have lived together.
C)   Identical twins are more similar on the trait than are fraternal twins.
D)   Fraternal twins are more similar on the trait than are identical twins.

Question 18

Phenylketonuria originates from

Accepted Answer

A)   a chromosomal anomaly.
B)   sex-linked inheritance.
C)   a dominant-recessive pattern.
D)   polygenic inheritance.

Question 19

Genes themselves make up about _____ of the human genome.

Accepted Answer

A)   1%
B)   20%
C)   96%
D)   100%

Question 20

In the past 40 years, the proportion of American children and adolescents who are overweight has

Accepted Answer

A)   stabilized.
B)   doubled.
C)   increased.
D)   decreased.

Exam 3: Biology and Behavior

Deaf individuals' responses to peripheral visual stimuli are evidence of

Correct AnswerverifiedShow Answer

In the past 40 years, the proportion of American children and adolescents who are overweight has

Correct AnswerverifiedShow Answer

For twins who grow up together, the degree of similarity of the environment is assumed to be equal. This is known as the

Correct AnswerverifiedShow Answer

_____ genes are expressed when an individual is heterozygous for a trait that follows a Mendelian inheritance pattern.

Correct AnswerverifiedShow Answer

Phenylketonuria originates from

Correct AnswerverifiedShow Answer

Michael and Scott are identical twin 7-year-old boys. Michael spends a great deal of time learning to master the game of chess while Scott plays tennis, golf, and baseball. Michael's and Scott's neural connections will develop differently through experience-_____ processes.

Correct AnswerverifiedShow Answer

Traits that are influenced by genetic factors are considered

Correct AnswerverifiedShow Answer

Genes themselves make up about _____ of the human genome.

Correct AnswerverifiedShow Answer

A twin study is conducted to examine the role of genetics and environment on the fondness of individuals for chocolate. Which result would lead to the conclusion that genetic factors are important in the development of this trait?

Correct AnswerverifiedShow Answer

Which property is NOT a mechanism for genetic inheritance of disease?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Provide a detailed description of how an individual's sex is determined. Be sure to explain the determination from the moment of conception to the "molding" of maleness or femaleness.

Correct AnswerverifiedAn individual's sex is determined by the...View AnswerShow Answer

_____ is a variant of the MRI that uses the rate of water diffusion to model 3-D spatial location in order to study how brain networks develop.

Correct AnswerverifiedShow Answer

Which statement about sex determination is TRUE?

Correct AnswerverifiedShow Answer

Sex-linked disorders associated with the X chromosome are

Correct AnswerverifiedShow Answer

The majority of human genes are devoted to making human beings

Correct AnswerverifiedShow Answer

Plasticity is highest and thus recovery from brain damage is MOST likely when _____ is occurring.

Correct AnswerverifiedShow Answer

Jacquelynne is 6 months pregnant and is having blood drawn for genetic testing of her baby. What type of testing is this?

Correct AnswerverifiedShow Answer

Which factor is a problem with the assumption that the similarities of twins in the Minnesota Study are due to genetic factors?

Correct AnswerverifiedShow Answer

Which infant is at an increased risk for delayed or slowed brain growth?

Correct AnswerverifiedShow Answer

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An individual's sex is determined by the...
View Answer

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