The human X and Y chromosomes are thought to have evolved from what used to be a pair of autosomes. Unlike homologous pairs of autosomes, the current X and Y chromosomes are very different in many ways, including their DNA composition, DNA sequence classes, and gene content. Comment on the degree of DNA sequence sharing between these two chromosomes, and the consequences of having very different sex chromosomes in males.

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The Answer of The human X and Y chromosomes are thought to have evolved from what used to be a pair of autosomes. Unlike homologous pairs of autosomes, the current X and Y chromosomes are very different in many ways, including their DNA composition, DNA sequence classes, and gene content. Comment on the degree of DNA sequence sharing between these two chromosomes, and the consequences of having very different sex chromosomes in males.

The Human X and Y Chromosomes Are Thought to Have