sister chromatid exchange

views updated May 23 2018

sister chromatid exchange (SCE) An event, similar to crossing-over, that can occur between sister chromatids at mitosis and meiosis. It may be detected in harlequin chromosomes (sister chromatids that stain differently so that one appears dark and the other light).

A Dictionary of Plant Sciences MICHAEL ALLABY

sister chromatid exchange

views updated May 29 2018

sister chromatid exchange (SCE) An event, similar to crossing-over, that can occur between sister chromatids at mitosis and meiosis. It may be detected in harlequin chromosomes (sister chromatids that stain differently so that one appears dark and the other light).

A Dictionary of Zoology MICHAEL ALLABY

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Sister chromatid exchange

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