Human bodies have to be built from a single egg cell that's fertilized by a sperm cell. Many rounds of cell division occur as the body is developing, and it seems that there are plenty of chances for ...

Life’s most important rendezvous occurs between a sperm and an egg, and scientists have long debated precisely how this get-together occurs. In particular, with the precise knowledge of a human ovum’s ...

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Intracytoplasmic sperm injection (ICSI) is a specialized form of in vitro fertilization (IVF) where a single sperm is injected directly into an egg. This technique is particularly beneficial for ...

A stunning explosion of zinc fireworks occurs when a human egg is activated by a sperm enzyme, and the size of these 'sparks' is a direct measure of the quality of the egg and its ability to develop ...