Most physical and psychological traits are _________
a. determined by one dominant gene
b. determined by co-dominant alleles
c. polygenic
d. not determined by genes
Answer: C
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The sex of an embryo is determined by the genetic contribution from the
a. father. b. mother. c. parent who contributes the dominant gene at site 23. d. parent who contributes the recessive gene at site 23.
Jared is 6-years-old. He is experiencing nausea and vomiting each morning before school. Jared may:
a. have separation anxiety disorder. b. is a typical 6-year-old who is nervous about starting 1st grade. c. may have an ulcer due to marital conflict within the family. d. none of these
Which of the following is true of people who participate in sleep deprivation experiments?
A. Their creativity levels remain unchanged. B. They show a decline in their logical reasoning abilities after the experiments. C. They are more alert than people who do not take part in such experiments. D. Most of them suffer permanent consequences of temporary sleep deprivation.
What would you expect to see on the EEG record of a person who is engaged in an episode of sleepwalking?
a) multiple K complexes b) very large sleep spindles c) evidence of deep sleep and relaxed wakefulness d) a record that is virtually the same as a daydreaming person