Regarding genetic sex, which of the following statements is FALSE?
a. Genetic sex is determined at the instant of conception and stays the same throughout life.
b. Males have XX chromosome pair, while females have an XY.
c. Persons with Turner's syndrome have only one X and no additional X or Y chromsomes.
d. Persons with Klinefelter's syndrome have an XXY chromosome combination.
ANSWER: b
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What is a "critical period" of development?
when certain things must occur for normal development when a person is in critical condition the point after conception and before implantation of a fetus any time period after birth when the child is learning
Measuring intelligence by testing is a rather new concept in the history of the world. The idea of such testing came from _________
a) France. b) United States. c) United Kingdom. d) Soviet Union.