Angiers egg select sperm
27 Feb The egg may be exercising a form of so-called cryptic female choice: selecting the best sperm from the batch with which to fuse. If so, then.
New Theory on How The Aggressive Egg Attracts Sperm
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12 Jun And a sperm cell is absurdly dwarfed by its female counterpart, the egg, which, fittingly or not, is among the biggest cells in the body. At 30 times.
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Fussy eggs actively choose sperm with the best genes suggesting that fertilisation is NOT random
Description:The egg is no passive lady-in-waiting. First, a wastefully huge swarm of sperm weakly flops along, its members bumping into walls and flailing aimlessly through thick strands of mucus. Eventually, through sheer odds of pinball-like bouncing more than anything else, a few sperm end up close to an egg. As they mill around, the egg selects one and reels it in, pinning it down in spite of its efforts to escape. The gigantic, hardy egg yanks this tiny sperm inside, distills out the chromosomes, and sets out to become an embryo.