The most frequently occurring form of Down syndrome results from

A) an extra broken piece of a twenty-first chromosome attaching to another chromosome.
B) an error during the early stages of mitosis.
C) a failure of the twenty-first pair of chromosomes to separate during meiosis.
D) the inheritance of an extra X chromosome.


Answer: C

Psychology

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The strategy in which people concentrate on particular skill areas to compensate for losses in other areas is called __________.

A. expertise B. sensory improvement C. long-term potentiation D. selective optimization

Psychology

One of the disadvantages of the correlational method is that

a. correlations may be weak. b. correlations may be negative or zero. c. it can only be used in laboratory settings. d. the relationships observed between variables may be caused by some unknown third factor.

Psychology

The text discusses three reasons why schemas can become accessible. Which of the following is NOT one of these reasons?

a. chronic accessibility due to past experience b. base rate information about a person c. related to a current goal d. temporary accessibility due to recent experiences

Psychology

Self-schemas may only seem different from other schemas because they are so well-developed

Indicate whether the statement is true or false

Psychology