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Why can't more than one sperm cell fertilize one ovum?

by Bivek Dahal
(Kathmandu)

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Why can't more than one sperm cell fertilize one ovum?

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BIO IS COOL
by: yashika

WHEN A SPERM FUSES WITH AN OVA,NO OTHER SPERMS ARE ALLOWED TO FUSE WITH OVA BECAUSE OF THE PRODUCTION OF A CHEMICAL CALLED SPERM LYSIN.

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