PSY 340 Week 1 Quiz /Tutorial (Scored: 100%)
PSY-340 Week One Quiz
Multiple Choice
Choose the
correct option for each question.
1. Chromosomes consist of large, double-stranded
molecules of:
1. deoxyribonucleic acid.
2. ribonucleic acid.
3. autosomal genes.
4. recombination genes.
2. Which of the following is NOT one of the many ways
that genes can affect behavior?
1. Genes may affect neurotransmitter levels or
receptors.
2. Genes can act indirectly by making it more likely
you will be raised in a particular environment.
3. Genes themselves cause behavior without any
influence of the environment.
4. Genes produce proteins that may make it more likely
for a person to become addicted.
3. Nerves from the central nervous system convey
information to the muscles and glands by way of the:
1. autonomic nervous system.
2. somatic nervous system.
3. sympathetic nervous system.
4. parasympathetic nervous system.
4. When researchers try to estimate the heritability
of a human behavior, what are the main kinds of individuals they consider?
1. Twins and adopted children
2. People from non-western cultures
3. Newborns and infants
4. Uneducated people living in educated societies
5. The sweat glands, adrenal glands, and muscles that
constrict blood vessels have input from only the ____ nervous system.
1. sympathetic
2. parasympathetic
3. central
4. dorsal root
6. The temporal lobe of the cerebral cortex is the
primary target for which kind of sensory information?
1. somatosensory, including touch
2. the simplest aspects of vision
3. gustatory
4. auditory
7. Suppose a virus damaged only the dorsal roots of
the spinal cord, but not the ventral roots. What would happen to the sensory
and motor abilities of the affected area?
1. Loss of sensation, but preserved motor control
2. Loss of both sensation and motor control
3. Loss of motor control, but preserved sensation
4. Unaffected sensation and motor control
8. Units of heredity that maintain their structural
identity from one generation to another are:
1. enzymes.
2. mutations.
3. nucleic acids.
4. genes.
9. Color vision deficiency is more common in males
than in females because it is controlled by a:
1. sex-limited gene.
2. Y-linked gene.
3. dominant X-linked gene.
4. recessive X-linked gene.
10. The central nervous system is composed of:
1. the brain and spinal cord.
2. all the nerves outside the brain and spinal cord.
3. the sympathetic and parasympathetic nervous
systems.
4. the somatic and autonomic nervous systems.
11. Almost all humans have 23 pairs of which of the
following?
1. RNA
2. Chromosomes
3. Genes
4. Corduroys
12. In one family, all three children are homozygous
for a recessive gene. What can be concluded about the parents?
1. Each parent is also homozygous for the recessive
gene.
2. Each parent is heterozygous.
3. One parent is homozygous for the dominant gene; the
other is homozygous for the recessive gene.
4. Each parent is either homozygous for the recessive
gene or heterozygous.
13. If the spinal cord is cut at a given segment, the
brain loses sensation at:
1. that segment only.
2. that segment and all segments above it.
3. that segment and all segments below it.
4. all other segments.
14. Changes in single genes are called:
1. alterations.
2. mutations.
3. mendelians.
4. enzymes.
15. Cortical blindness may result from the destruction
of:
1. any part of the cortex.
2. the occipital cortex.
3. the parietal cortex.
4. the central sulcus.
16. Damage to the ____ often causes people to lose
their social inhibitions and to ignore the rules of polite conduct.
1. corpus callosum
2. cerebellum
3. prefrontal cortex
4. striate cortex
17. If a trait has high heritability:
1. hereditary differences account for none of the
observed variations in that characteristic within that population.
2. the environment cannot influence that trait.
3. it is still possible for the environment to
influence that trait.
4. the trait is not influenced by heredity.
18. If a person has difficulty determining which of two
rhythms is faster, it is likely that she suffered damage to the:
1. cerebellum.
2. forebrain.
3. tectum.
4. medulla.
19. Recessive genes manifest their effects only when
the individual is ____ for them.
1. sex limited
2. homo sapien
3. homozygous
4. heterozygous
20. An impairment of eating, drinking, temperature
regulation, or sexual behavior suggests possible damage to which brain
structure?
1. Midbrain
2. Hippocampus
3. Hypothalamus
4. Cerebellum
True or False
Choose whether each statement is True or False.
1. Researchers have found specific genes linked to
certain specific behaviors.
1. True b.
False
2. The parasympathetic nervous system activates the
“fight or flight” response.
1. True b.
False
3. A strand of DNA serves as a template (model) for
the synthesis of RNA molecules.
1. True b.
False
4. A tract in the spinal cord would most likely be
found in the white matter.
1. True b.
False
5. The limbic system is important for motivation and
emotional behaviors.
1. True b.
False
Short Answer
Answer the following questions in 50 to 100 words
each.
1. What are the four lobes of the brain? What is each
lobe responsible for?
2. What makes a behavior hereditary? What factors
influence the heritability of behaviors?
