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Male Sex Chromosome Losing Genes by Rapid Evolution, Study Reveals


July 16, 2009

giraffe 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. Full Story

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Penn State

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2016, its budget is $7.5 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 48,000 competitive proposals for funding and makes about 12,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.

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