Which one of the following statements about the sex chromosomes is FALSE?
A) The X chromosome has a gene density similar to most autosomes.
B) In contrast to the approximately 1000 genes in the X chromosome, the Y chromosome contains only about 50 genes.
C) The relative size and gene content of the X and Y chromosomes is very similar across all animal species.
D) Crossing over between the X and Y chromosomes occurs in very small regions of homology at the tips of the chromosomes.
E) Crossing over between the X and Y chromosomes allows the sex chromosomes to align correctly during metaphase I and separate from each other during anaphase I.
Correct Answer:
Verified
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