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test cross

A Dictionary of Biology | 2004 | 336 words | Copyright

test cross A mating (cross) made to identify hidden recessive alleles in an individual of unknown genotype. This individual is crossed with one that is homozygous for the allele being investigated (i.e. a homozygous recessive). The homozygous recessive individual may be the parent of the individual being investigated (see back cross).

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