ERIC GRAVE / SCIENCE PHOTO LIBRARY ERIC GRAVE / SCIENCE PHOTO LIBRARY
Conjugating Paramecia. Coloured light micrograph of two ciliate protozoans Paramecium caudatum, showing conjugation. Conjugation occurs in some algae, and unicellular animals such as Paramecium. It is a process whereby two individuals come together to exchange or donate genetic material. There may be partial cell fusion, as seen here, while the nucleus or nuclei inside each cell undergoes division. Magnification: x83 at 35mm size.
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