After the egg has been fertilized by a sperm, the surrounding egg coat tightens, mechanically preventing the entry of additional sperm and the ensuing death of the embryo. This is according to a new study led by researchers at Karolinska Institutet and published in the journal Cell.
New discovery reveals how the egg controls sperm entry retrieved 14 March 2024 from https://phys.org/news/2024-03-discovery-reveals-egg-sperm-entry.html
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