Why Does It Take So Much Sperm To Fertilize An Egg?

Why Sperm Fertilize Egg - Psychology, Special Needs, Health - Posted: 21st Jul, 2019 - 6:50pm

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Post Date: 21st Jul, 2019 - 6:50pm / Post ID: #

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Why Does It Take So Much Sperm To Fertilize An Egg?

Sperm may offer the uterus a 'secret handshake'. Why does it take 200 million sperm to fertilize a single egg? Part of the reason is bombardment by the female immune system, which very few sperm survive. Researchers have discovered a molecular handshake between sperm and uterine cells that may help sperm evade this attack -- or may help the immune system target the weakest sperm. Source 7z.

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