Genetic Origins of the Two Sexes (IMAGE)

Donald Danforth Plant Science Center

Genetic Origins of the Two Sexes

Caption

This is a female Eudorina colony with 32 large egg cells, some of which are pairing with small male sperm cells. On the upper right is a male sperm packet which has found the female colony and is about to release its sperm inside.

Credit

Hiroko Kawai-Toyooka, University of Tokyo.

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