Question 1

Kin selection as an explanation for altruistic behavior would argue that ____.

Accepted Answer

A)   individuals help others who help them
B)   individuals pick their mates based on how altruistic they are
C)   individuals spread their genes by helping their relatives
D)   society benefits as a whole when individuals help each otherE) A) and B)
F) B) and D)

Question 2

Heightened sensitivity to a neurotransmitter after the destruction of an incoming axon is known as ____.

Accepted Answer

A)   axon supersensitivity
B)   disuse supersensitivity
C)   enervation supersensitivity
D)   denervation supersensitivityE) A) and B)
F) B) and C)

Question 3

Synaptogenesis is a process that begins before birth and continues throughout life.

Accepted Answer

A) True 
 B)False

Question 4

Why do children with PKU develop intellectual disabilities?

Accepted Answer

A)   Unmetabolized amino acids accumulate and affect the brain.
B)   Essential axons lack myelin sheaths.
C)   Dendrites and synapses fail to form in associative areas of the cortex.
D)   Their immune systems do not fight off brain infections.E) B) and C)
F) A) and D)

Question 5

The damaging effects of a stroke can be limited if treated within a short period of time.

Accepted Answer

A) True 
 B)False

Question 6

The developing infant brain is highly resistant to damage.

Accepted Answer

A) True 
 B)False

Question 7

Which statement best explains why males can grow breasts under certain hormonal conditions?

Accepted Answer

A)   Sex-linked genes become activated.
B)   The Y chromosome becomes activated.
C)   Sex-limited genes become activated.
D)   Breast growth is linked to color vision deficiency.E) All of the above
F) A) and D) C

Question 8

Marren has had an ischemic stroke. Sarai has had a hemorrhagic stroke. Discuss the differences in the types of stroke each patient had. Then, discuss how some treatments would be similar and others would be different.

Accepted Answer

An ischemic stroke occurs when a blood c...

Question 9

Any estimate of the heritability of a particular trait is specific to ____.

Accepted Answer

A)   a given population
B)   the parents
C)   the trait
D)   the strength of the traitE) A) and B)
F) A) and C)

Question 10

After learning strengthens one set of synapses, other synapses ____.

Accepted Answer

A)   weaken
B)   die
C)   get stronger
D)   become arousedE) A) and B)
F) All of the above A

Question 11

A magnetoencephalography study of professional musicians listening to pure tones showed that the musicians had ____.

Accepted Answer

A)   brain responses that were twice as strong as non-musicians
B)   slightly less brain responses as non-musicians
C)   drastically less brain responses as non-musicians
D)   brain responses five times as strong as non-musiciansE) A) and B)
F) A) and C)

Question 12

In general, biologists who speak of sex-linked genes are typically referring to genes on ____.

Accepted Answer

A)   autosomal chromosomes
B)   more than one chromosome
C)   the X chromosome
D)   the Y chromosomeE) A) and C)
F) A) and B) C

Question 13

Chromosomes consist of large, double-stranded molecules of ____.

Accepted Answer

A)   deoxyribonucleic acid
B)   ribonucleic acid
C)   autosomal genes
D)   recombination genesE) None of the above
F) A) and B)

Question 14

Nerve growth factor (NGF)  ____.

Accepted Answer

A)   promotes the survival and growth of the axon
B)   is a fuel metabolized by neurons
C)   promotes programmed cell death
D)   is a hormone first released at pubertyE) All of the above
F) B) and C)

Question 15

Group selection works well as an explanation for human behavior because humans ____.

Accepted Answer

A)   can expel uncooperative individuals from groups
B)   are a highly social species who emphasize groups
C)   can make rational choices about mate selection
D)   benefit from living in groupsE) A) and B)
F) A) and C)

Question 16

Group selection as an explanation for altruistic behavior would argue that ____.

Accepted Answer

A)   individuals are more likely to reproduce when stress is low
B)   individuals pick their groups based on how altruistic they are
C)   cooperative groups thrive better than do uncooperative groups
D)   society benefits as a whole when individuals help each otherE) C) and D)
F) None of the above

Question 17

Discuss three evidences that can explain altruistic behavior.

Accepted Answer

There are several pieces of evidence tha...

Question 18

Myelination of the brain and spinal cord is complete by the time of birth.

Accepted Answer

A) True 
 B)False

Question 19

Myelination in the human brain ____.

Accepted Answer

A)   is complete upon birth
B)   is complete around the second birthday
C)   is complete sometime shortly after adolescence
D)   continues well into the adult yearsE) B) and D)
F) B) and C)

Question 20

A trait not expressed when combined with a dominant trait is called a(n)  ____ trait.

Accepted Answer

A)   nurture
B)   recessive
C)   dominant
D)   homozygousE) A) and D)
F) A) and C)

Exam 4: Genetics, Evolution, Development, and Plasticity

Kin selection as an explanation for altruistic behavior would argue that ____.

Correct AnswerverifiedShow Answer

Heightened sensitivity to a neurotransmitter after the destruction of an incoming axon is known as ____.

Correct AnswerverifiedShow Answer

Synaptogenesis is a process that begins before birth and continues throughout life.

Correct AnswerverifiedShow Answer

Why do children with PKU develop intellectual disabilities?

Correct AnswerverifiedShow Answer

The damaging effects of a stroke can be limited if treated within a short period of time.

Correct AnswerverifiedShow Answer

The developing infant brain is highly resistant to damage.

Correct AnswerverifiedShow Answer

Which statement best explains why males can grow breasts under certain hormonal conditions?

Correct AnswerverifiedC

Marren has had an ischemic stroke. Sarai has had a hemorrhagic stroke. Discuss the differences in the types of stroke each patient had. Then, discuss how some treatments would be similar and others would be different.

Correct AnswerAnswered by ExamLex AIAn ischemic stroke occurs when a blood c...View AnswerShow Answer

Any estimate of the heritability of a particular trait is specific to ____.

Correct AnswerverifiedShow Answer

After learning strengthens one set of synapses, other synapses ____.

Correct AnswerverifiedA

A magnetoencephalography study of professional musicians listening to pure tones showed that the musicians had ____.

Correct AnswerverifiedShow Answer

In general, biologists who speak of sex-linked genes are typically referring to genes on ____.

Correct AnswerverifiedC

Chromosomes consist of large, double-stranded molecules of ____.

Correct AnswerverifiedShow Answer

Nerve growth factor (NGF) ____.

Correct AnswerverifiedShow Answer

Group selection works well as an explanation for human behavior because humans ____.

Correct AnswerverifiedShow Answer

Group selection as an explanation for altruistic behavior would argue that ____.

Correct AnswerverifiedShow Answer

Discuss three evidences that can explain altruistic behavior.

Correct AnswerAnswered by ExamLex AIThere are several pieces of evidence tha...View AnswerShow Answer

Myelination of the brain and spinal cord is complete by the time of birth.

Correct AnswerverifiedShow Answer

Myelination in the human brain ____.

Correct AnswerverifiedShow Answer

A trait not expressed when combined with a dominant trait is called a(n) ____ trait.

Correct AnswerverifiedShow Answer

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C

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Answered by ExamLex AI
An ischemic stroke occurs when a blood c...
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A

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C

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Answered by ExamLex AI
There are several pieces of evidence tha...
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