Two mutations triggered an evolutionary leap 500 million years ago

Scientists have discovered two key mutations that sparked a hormonal revolution 500 million years ago. In a feat of "molecular time travel," the researchers resurrected and analyzed the functions of the ancestors of genes that play key roles in modern human reproduction, development, immunity and cancer.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/e...