In what ways do human X and Y chromosomes differ from one another?
A) The X chromosome is larger than the Y chromosome.
B) The X chromosome has about 1000 genes and the Y chromosome only about 50.
C) The X chromosome is found only in females, while the Y chromosome is found only in males.
D) The X and Y chromosomes have no regions in common and do not pair during meiosis.
Correct Answer:
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