the sex cells

In the illustration by Prof. Luca Jovine from the Karolinska Institute, the structure of Fsx1 (right) deciphered by the researchers appears. The structure belongs to an archaeon that originated in a water environment with high salinity (represented by salt on the left)

Hypothesis: The mechanism that enables sexual reproduction was created about a billion years before its actual appearance

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The Technion researchers and their colleagues abroad: It is possible that the cellular mechanisms that enable the fusion of the sperm and the egg were created as early as 3 billion years ago in single-celled organisms of the archaea type