MeSH definition : 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.;
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.