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Sister chromatid exchange

sister chromatid exchange

An aberrant crossing-over event in which there is 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. It can be induced by ultraviolet and ionizing radiation or by mutagenic agents and is observed by autoradiography.

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Re: Ethidium

... BALB/c3T3 cells (AA, 1-2 mM, 72 h treatment). Sister chromatid exchange was also weakly but significantly induced by AA (AA, 1-2.5 ...

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by zami'87.
Thu Dec 17, 2009 12:42 pm
Forum: Molecular Biology
Topic: Ethidium
Replies: 5
Views: 4462

origin of VNTRs?

ever heard of unequal cross over and unequal sister chromatid exchange ? and thereby errors in replication can duplicate a DNA-sequence ...

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by sdekivit
Thu Jul 13, 2006 8:29 pm
Forum: Genetics
Topic: origin of VNTRs?
Replies: 2
Views: 1470

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