Actually Y chromosomes do have a small recombination region. They pair up with a similarly short corresponding region on the X chromosome. This makes sense because the X and Y chromosomes evolved from a homologous pair, and a part of the recombination machine has been preserved. If one of these crossover events had occurred, the results may have been significantly different.
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Actually Y chromosomes do have a small recombination region. They pair up with a similarly short corresponding region on the X chromosome. This makes sense because the X and Y chromosomes evolved from a homologous pair, and a part of the recombination machine has been preserved. If one of these crossover events had occurred, the results may have been significantly different.