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