Science
Sperm ‘switch’ would allow men to turn their fertility on and off – Study Finds
Experiments on mice find the “winner” who fertilizes the egg carries a set of toxic mutations that poison rival sperm.
BERLIN, Germany — The biological race between sperm to reach an egg is a fierce and competitive process. Now, researchers in Germany say they have discovered which protein gives sperm the winning edge. Their study finds a molecular “switch” in sperm could also allow men to turn their fertility on and off.
Experiments on mice find the “winner” carries a set of toxic mutations that poison rival sperm. Researchers say a genetic factor called t-haplotype promotes the success of the sperm carrying it….
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