Biology, asked by bharatdkhadse6028, 1 year ago

Why is a homozygous recessive used in a testcross?

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Answered by swatisingh992

Although the unknown genotype could also be determined by a cross with a known heterozygote, test crosses are done with homozygous recessive individuals. If the unknown is heterozygous, the recessive trait will be present in half of the offspring.

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