News From the Field
Male Sex Chromosome Losing Genes by Rapid Evolution, Study Reveals
July 16, 2009
Scientists long have suspected that the sex chromosome that only males carry, the Y chromosome, is deteriorating, but until now, no one has understood the evolutionary processes that control this chromosome's demise. Now, a pair of Penn State scientists has discovered that the Y chromosome is evolving at a rapid rate, resulting in a dramatic loss of genes that eventually could lead to the chromosome's complete disappearance.
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