Which of the following is an example of a chromosomal abnormality that occurs when whole chromosomes do not separate properly during meiosis?
A. sickle-cell anemia
B. hemophilia
C. Huntington's disease
D. Down syndrome
Answer: D
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A common emotional display rule for American babies is,
a. "Don't look directly at adults.". b. "Hide your feelings unless others are interested.". c. "Arms and legs must be motionless when feelings are shown.". d. "Strong emotions are fine, so long as they are positive.".
An academic test that reflects the material it intends to assess is said to have
a) reliability. b) content validity. c) construct validity. d) predictive validity.
The autonomic nervous system has two divisions: the ________ and the ________
a) central; peripheral b) sympathetic; parasympathetic c) receptors; effectors d) limbic; endocrine
The majority of research studies have shown a correlation between age and _____________
Fill in the blank(s) with the appropriate word(s).