Which statement best describes the Y chromosome?
A. The Y chromosome is bigger than the X chromosome.
B. The Y chromosome contains about 30% of the genetic material that the X chromosome contains.
C. The Y chromosome is responsible for determining the sex of the child.
D. There are no differences between the Y chromosome and the X chromosome.
Answer: B
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One of the difficulties in conducting studies of the specific effects of methamphetamine is that
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The __________ phenomenon is a model of epileptogenesis
Fill in the blank with the appropriate word.