polyribosome

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polyribosome (polysome) An aggregate of ribosomes in association with a single messenger RNA molecule during the translation process of protein synthesis. In eukaryotes, polyribosomes are attached to the surface of the rough endoplasmic reticulum and the outer membrane of the nucleus; in bacteria they are found free in the cytoplasm.

A Dictionary of Biology

polyribosome

views updated May 23 2018

polyribosome See RIBOSOME.

A Dictionary of Plant Sciences MICHAEL ALLABY

polyribosome

views updated May 17 2018

polyribosome See RIBOSOME.

A Dictionary of Zoology MICHAEL ALLABY

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polyribosome

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