Sister Chromatid Exchange D012854

Phenomena and Processes [G] » Genetic Phenomena [G05] » Recombination, Genetic » Homologous Recombination » Sister Chromatid Exchange

Description

An exchange of segments between the sister chromatids of a chromosome, either between the sister chromatids of a meiotic tetrad or between the sister chromatids of a duplicated somatic chromosome. Its frequency is increased by ultraviolet and ionizing radiation and other mutagenic agents and is particularly high in BLOOM SYNDROME.   MeSH

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