To be sperm, or not to be sperm?

11 junio 2015

Researchers have found, for the first time in vertebrates, a genetic switch that determines whether germ cells become sperm or eggs. The gene is named foxl3, and has been identified using a small fish called medaka. In medaka without this gene’s functionality, surprisingly, sperm are produced in the ovaries of females.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YZ-HvJiVMxY/150611144440.htm

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