Disjunction of the 21st chromosome that can lead to Down syndrome has been found to be related in most cases to
A. paternal age.
B. maternal age.
C. multiple codon repeats on the X chromosome.
D. the inability to metabolize phenylalanine.
Answer: B
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Which of the following factors appears to play an important role in the mate selection process today as partners determine their similarity?
a. Number of siblings b. Health and fitness c. Agreement about the balance of work and family roles d. Role incompatibility
One responsibility of the Institutional Review Board (IRB) is to ensure that ____
a. research reports are honest and accurate b. nonhuman subjects will be kept safe in research c. human participants will be kept safe in research d. human participants will not be deceived in research
Sigmund Freud would agree with all of the following EXCEPT
a. dreams represent the unconscious. b. early memories could be found in dreams. c. the key to analyzing a dream will be found in the latent content. d. Freud never really believed that dreams represented the unconscious. e. dreams have two primary levels of content.
Setting clear rules and limits includes keeping a(n) _____ list of rules
A) elaborate B) short C) detailed D) grammatically correct