Cognitive maps are
a. observable mental events.
b. consistent with conditioning theories.
c. learned without reinforcement.
d. inconsistent with insightful problem solving.
c
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Sickle cell disease is caused by a genetic mutation and, when untreated, results in disability and early death. However, the mutation that causes sickle cell disease is associated with protection against malaria, especially early in life. As a result, you would expect to see sickle cell disease ____
a. eradicated as quickly as malaria is eradicated b. occur predominantly in populations that have historically low rates of malaria and similar diseases c. occur at similar rates in all populations, since malaria can be found anywhere mosquitoes, which transmit malaria, are found d. occur at higher rates among populations whose genetic heritage can be traces to areas with a high incidence of malaria
Which of the following causes Down syndrome?
A) The presence of an extra chromosome on the 21st pair B) The presence of only 22 pairs of chromosomes C) The presence of more than 23 pairs of chromosomes D) The presence of an extra chromosome on the 23rd pair
Early in their marriage, in their mid-20s, Charles and Leona had two normal children, a boy and girl. Later, when Charles and Leona were both 42 years old, Leona unexpectedly became pregnant again, despite the birth control methods the couple had practiced for many years. Both parents were in good physical health and there was no history of genetic disorders in either of their families. Still,
they wondered about the risks of a genetic or chromosomal disorder in their child-to-be. (a) What might a genetic counselor tell the parents about their chances of having a child with Down syndrome? (b) What methods might be employed to determine if the fetus is normal prior to birth? (c) What other kinds of defects might these methods detect? What will be an ideal response?
MacDonald is in his mid-60s. He is reflecting on his life and is experiencing a sense of satisfaction and accomplishment. Erikson refers to this as
a) self-esteem. b) civility. c) integrity. d) self-appraisal.