Allison was born with an extra 21st chromosome, which makes her more susceptible to heart defects and mental retardation. Allison has ____.?
a. ?Fetal Alcohol Syndrome
b. ?Tay Sachs disease
c. ?sickle cell anemia
d. ?Down syndrome
ANSWER:
d
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The high rate of AIDS in countries in Africa is most likely due to
a. having more sexual partners than most developing countries. b. the more liberal attitudes about sexual behaviors in this culture. c. a lack of knowledge about venereal diseases and a lack of access to condoms. d. all of these.
In a random sample of 200 American adults, approximately __________ would be clinically obese.
A. 10 B. 26 C. 50 D. 66
When does crossing over happen during meiosis?
a) at the outset b) throughout the entire process c) in the middle d) at the end
If a test is equally valid for different groups and they still score differently on it, it is likely that ________.
A. the test is fair but not standardized B. the test is unfair but definitely standardized C. the test may be unfair but it is not biased D. the test may be fair but is definitely biased