Agence France-PresseApril 17, 2014 13:31
Scientists said Wednesday they had made the long-sought discovery of how sperm latches onto an egg in the very first spark of reproduction, the outcome of a near decade-long hunt.
The find opens up avenues for new contraception or treating infertility, they said.
When a sperm meets an egg, they fuse to form a single-cell entity called a zygote, which divides to produce an embryo.
In 2005, Japanese researchers reported they had found a molecule jutting from the membrane of mammalian sperm that docks onto the surface of the egg.