Question 1

Suppose you conducted a large study that examined children who carry a gene linked to depression, who experienced severe environmental trauma, or both.Based on your knowledge regarding the interaction between environment and genetics, who is most likely to show signs of depression later in life?

Accepted Answer

A)  those who showed early signs of depression
B)  those who carried the gene linked to depression
C)  those who showed both early signs of depression and carried the depression-linked gene
D)  None of the children would be predicted to more likely develop depression.E) B) and C)
F) None of the above

Question 2

Drugs affect neural communication in each of the following ways EXCEPT

Accepted Answer

A)  blocking reuptake.
B)  blocking receptors.
C)  destroying neurotransmitters.
D)  eliminating the need for action potentials.E) B) and C)
F) A) and D)

Question 3

The phrase adrenaline rush refers to the action of the neurotransmitter

Accepted Answer

A)  dopamine.
B)  serotonin.
C)  acetylcholine.
D)  epinephrine.E) A) and D)
F) A) and B)

Question 4

What are the branchlike appendages that detect chemical signals from other neurons?

Accepted Answer

A)  axons
B)  synapses
C)  cell bodies
D)  dendritesE) None of the above
F) A) and D)

Question 5

Which of the following would be the best example of phantom limb syndrome?

Accepted Answer

A)  not remembering that you have lost your arm
B)  experiencing intense sensations in your leg, even though the leg has actually been amputated
C)  dreaming about your missing limb as if it were still there
D)  using a prosthetic limbE) B) and C)
F) C) and D)

Question 6

Which of the following research goals is appropriate for using a knockout mouse?

Accepted Answer

A)  to determine the effects of an enriched environment on mouse behavior
B)  to determine the effect of increasing gene expression on mouse behavior
C)  to determine how a removed or disrupted gene might interact with the environment
D)  to reduce the need for MRIs and other techniques to study brain developmentE) A) and C)
F) B) and C)

Question 7

The process by which chromosomes duplicate and the cell divides into new cells with identical chromosome structure is called

Accepted Answer

A)  fertilization.
B)  cell division.
C)  mutation.
D)  conception.E) All of the above
F) B) and C)

Question 8

Since curare interferes with acetylcholine functioning, we would assume it is an)

Accepted Answer

A)  agonist.
B)  antagonist.
C)  substance that destroys neurons with acetylcholine receptors.
D)  toxin released by neurons that binds to acetylcholine receptors.E) A) and B)
F) A) and C)

Question 9

You cannot fire a gun softly or flush a toilet halfway.Like an action potential, gunfire and a toilet's flush follow the principle.

Accepted Answer

A)  on-or-off
B)  this-or-that
C)  binary response
D)  all-or-noneE) None of the above
F) A) and B)

Question 10

Which of the following is a source of evidence that human skin color is genetically more complex than flower color in Mendel's experiments?

Accepted Answer

A)  Humans are more complicated than plants.
B)  Humans have a large range of skin tones.
C)  Mammals and plants follow completely different genetic principles.
D)  Humans do not have dominant genes.E) B) and D)
F) C) and D)

Question 11

Which of the following structures is important for experiencing reward?

Accepted Answer

A)  frontal lobe of the cerebral cortex
B)  nucleus accumbens of the basal ganglia
C)  frontal lobe of the basal ganglia
D)  nucleus accumbens of the cerebral cortexE) None of the above
F) A) and D)

Question 12

The two types of ions that control neuron firing are and .

Accepted Answer

A)  nitrogen; calcium
B)  calcium; sodium
C)  sodium; potassium
D)  potassium; magnesiumE) B) and D)
F) None of the above

Question 13

A gene is

Accepted Answer

A)  a segment of DNA that is involved in producing proteins that carry out specific tasks.
B)  the same as a chromosome.
C)  a segment of RNA that carries out specific cellular building tasks.
D)  programmed to produce protein irrespective of the environment.E) B) and D)
F) C) and D) A

Question 14

The neural impulse, or , is a brief electrical charge that travels down an axon.

Accepted Answer

A)  action potential
B)  resting membrane potential
C)  neurotransmitters
D)  all-or-none principleE) All of the above
F) A) and B)

Question 15

The extensions of a neuron that receive messages from other neurons are the

Accepted Answer

A)  axons.
B)  cell body.
C)  dendrites.
D)  terminal buttons.E) None of the above
F) A) and B) C

Question 16

Our body's nervous system is built from billions of nerve cells, also called

Accepted Answer

A)  neurotransmitters.
B)  neurons.
C)  axons.
D)  genomes.E) None of the above
F) A) and B)

Question 17

Damage to this brain structure can produce symptoms resembling Parkinson's disease.

Accepted Answer

A)  hypothalamus
B)  hippocampus
C)  amygdala
D)  basal gangliaE) None of the above
F) All of the above

Question 18

In general, siblings of different ages raised together have

Accepted Answer

A)  the same genes but different environments.
B)  the same environment but different genes.
C)  different genes and different environments.
D)  the same genes and same environments.E) A) and B)
F) A) and C)

Question 19

Anke is working in a laboratory and comes across a rat that is grossly overweight and seems unable to stop eating.The researcher tells Anke this rat has a brain lesion.Which part of the brain most likely has the lesion?

Accepted Answer

A)  amygdala
B)  hypothalamus
C)  frontal lobe
D)  brain stemE) A) and C)
F) B) and C) B

Question 20

Brad has experienced a relatively severe left hemisphere stroke.As a result, he is unable to move his right arm and has a great deal of difficulty with planning and with maintaining attention.The location of his stroke is most likely the lobe.

Accepted Answer

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

Exam 3: Biology and Behaviour

Suppose you conducted a large study that examined children who carry a gene linked to depression, who experienced severe environmental trauma, or both.Based on your knowledge regarding the interaction between environment and genetics, who is most likely to show signs of depression later in life?

Correct AnswerverifiedShow Answer

Drugs affect neural communication in each of the following ways EXCEPT

Correct AnswerverifiedShow Answer

The phrase adrenaline rush refers to the action of the neurotransmitter

Correct AnswerverifiedShow Answer

What are the branchlike appendages that detect chemical signals from other neurons?

Correct AnswerverifiedShow Answer

Which of the following would be the best example of phantom limb syndrome?

Correct AnswerverifiedShow Answer

Which of the following research goals is appropriate for using a knockout mouse?

Correct AnswerverifiedShow Answer

The process by which chromosomes duplicate and the cell divides into new cells with identical chromosome structure is called

Correct AnswerverifiedShow Answer

Since curare interferes with acetylcholine functioning, we would assume it is an)

Correct AnswerverifiedShow Answer

You cannot fire a gun softly or flush a toilet halfway.Like an action potential, gunfire and a toilet's flush follow the principle.

Correct AnswerverifiedShow Answer

Which of the following is a source of evidence that human skin color is genetically more complex than flower color in Mendel's experiments?

Correct AnswerverifiedShow Answer

Which of the following structures is important for experiencing reward?

Correct AnswerverifiedShow Answer

The two types of ions that control neuron firing are and .

Correct AnswerverifiedShow Answer

A gene is

Correct AnswerverifiedA

The neural impulse, or , is a brief electrical charge that travels down an axon.

Correct AnswerverifiedShow Answer

The extensions of a neuron that receive messages from other neurons are the

Correct AnswerverifiedC

Our body's nervous system is built from billions of nerve cells, also called

Correct AnswerverifiedShow Answer

Damage to this brain structure can produce symptoms resembling Parkinson's disease.

Correct AnswerverifiedShow Answer

In general, siblings of different ages raised together have

Correct AnswerverifiedShow Answer

Anke is working in a laboratory and comes across a rat that is grossly overweight and seems unable to stop eating.The researcher tells Anke this rat has a brain lesion.Which part of the brain most likely has the lesion?

Correct AnswerverifiedB

Brad has experienced a relatively severe left hemisphere stroke.As a result, he is unable to move his right arm and has a great deal of difficulty with planning and with maintaining attention.The location of his stroke is most likely the lobe.

Correct AnswerverifiedShow Answer

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A

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C

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B

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