Question 1

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

Accepted Answer

A)   weaken
B)   die
C)   get stronger
D)   become aroused A

Question 2

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. C

Question 3

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 chromosome C

Question 4

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

The answer of  Marren has had an ischemic stroke. Sarai...

Question 5

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 puberty

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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 years

Question 10

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 other

Question 11

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 other

Question 12

Discuss three evidences that can explain altruistic behavior.

Accepted Answer

The answer of  Discuss three evidences that can explain altruistic...

Question 13

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.

Question 14

The developing infant brain is highly resistant to damage.

Accepted Answer

A) True 
 B)False

Question 15

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-musicians

Question 16

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

Accepted Answer

A)   deoxyribonucleic acid
B)   ribonucleic acid
C)   autosomal genes
D)   recombination genes

Question 17

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 trait

Question 18

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 supersensitivity

Question 19

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 groups

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)   homozygous

Exam 4: Genetics, Evolution, Development, and Plasticity

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

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

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

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.

Nerve growth factor (NGF) ____.

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

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

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

Myelination in the human brain ____.

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

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

Discuss three evidences that can explain altruistic behavior.

Why do children with PKU develop intellectual disabilities?

The developing infant brain is highly resistant to damage.

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

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

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

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

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

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