zygosity testing

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The testing of individuals born from a multiple gestation (twins, triplets, etc.) to see if they are homozygotic or dizygotic. The process generally involves comparisons of DNA profiles. The purpose may be to identify a suitable donor for organ transplantation or to determine the risks of other siblings developing a genetic disease, if one is diagnosed with the condition. See DNA forensics, twins.

Subjects: Genetics and Genomics.

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