A Female Sexual Polyp of the Cnidarian Hydractinia Symbiolongicarpus (IMAGE)

NIH/National Human Genome Research Institute

A Female Sexual Polyp of the Cnidarian Hydractinia Symbiolongicarpus

Caption

Piwi1-positive oocytes are shown in yellow; cell nuclei are in turquoise. Germ cell induction and all stages of gametogenesis can be visualized in these clonal animals.

Credit

Timothy DuBuc, Ph.D. Swarthmore College

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