1. A psychologist who is attempting to determine whether a behavior
is due to the effects of gene or due to the effects of -the environment
is dealing with the
A. mind-body problem.
B. nature-nurture problem.
C. existential paradox.
D. fundamental attribution dilemma.
2. A person who is heterozygous for a particular gene will
A. have two dominant genes for the particular trait.
B. have two recessive genes for the particular trait.
C. show the effects of the dominant gene, but may pass the recessive gene on to a son or daughter.
D. show the effects of either the dominant or recessive gene, but will only pass the dominant gene on to a son or daughter.
3. The different chemicals that are used as neurotransmitters
by various neuron.
A. produce action potentials that travel at different velocities.
B. control different aspects of behavior.
C. produce action potentials of different sizes (amplitudes).
D all produce the same effects.
4. People with Parkinson's disease have trouble in
A. digesting certain foods.
B. controlling voluntary movements.
C. inhibiting emotional outbursts.
D. sleeping and awakening on schedule.
5. What is a neurotransmitter?
A. a machine that measures brain waves
B. a chemical that travels from one neuron to another
C. a drug that produces hallucinations
D. an ionized chemical bound to the nucleus of a cell
6. Transmission at a synapse depends on
A. the exchange of chemicals in both directions between two neurons.
B. the release of a chemical by one neuron and its reception by another.
C. a temporary interruption of the usual electrical conduction between the two neurons.
D. a change in the concentration of oxygen and carbon dioxide at a point between two neurons.
7. The `gray matter" of the brain is composed mostly of
A. cell bodies.
B. muscle fibers.
C. axons.
D. blood vessels.
8. The overall picture that emerges from modern research of how the brain works i. that
A. all sensory information feeds into one central processor, where information is integrated and decisions are made.
B. the cerebral cortex operates as a whole: every important behavioral function depends on all brain areas more or less equally.
C. the brain consists of a great many separate pathways, each acting in parallel with the others.
D each thought you have is stored on one, and only one, neuron.
9. A good friend of yours suffers a stroke, and as a result develops prosopagnosia (or "face blindness"). He can see your face, describe various parts of your face, but does not recognize you when he sees you. What part of your friend's brain was probably damaged?
A. pons and medulla
B. reticular formation
C. hypothalamus
D. cortex on the temporal lobe
10. Color blindness depends on an Xlinked recessive gene. Suppose a colorblind man marries a woman who is homozygous for normal color vision. What sort of color vision will their children have?
A. All of them will be colorblind.
B. All of them will have normal color vision, but some of the daughters may be carriers who can pass on color blindness to their own children.
C. The eons will be colorblind and the daughters will have normal color vision.
D. The daughters will be colorblind and the sons will have normal color vision.
11. Which of the following would count as evidence in favor of a genetic influence on behavior?
A. Adopted children resemble their adoptive parents more than they resemble their biological parents.
B. Adopted children resemble their biological parents more than they resemble their adoptive parents.
C. Dizygotic twins resemble each other more than monozygotic twins do.
D. Monozygot ic twins reared together resemble each other more than monozygotic twins reared apart do.
12. Most Asian adults drink little or no milk and seldom eat dairy products. The primary reason is
A. a cultural taboo against dairy products.
B. genetic difference in the taste buds from nonAsians.
C. a lack of availability of dairy products in most Asian countries.
D. genetic differences in digestion.
13. The three parts of a neuron are the cell body, the _____ and the ____
A. glia ... dendrites
B. action potential ... membrane
C. glia ... axon
D. dendrites ... axon
14. It would be impossible for a brain to have more
A. dendrites than axons.
B. axons than neurons.
C. glia than neurons.
D. dendrites than glia.
15. A neuron is
A. a cell of the nervous system that conveys information to other cells.
B. a cell of the nervous system that does not convey information to other cells.
C. a part of a cell of the nervous system.
D. a cluster of cells in the nervous system.
ANS: B, C, B, B, B, B, A, C, D, B, B, D, D, B, A