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(A) test cross is a genetic cross between an individual of unknown genotype and a homozygous recessive individual.It is primarily used to determine th

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Genotype

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(A) test cross is a genetic cross between an individual of unknown genotype and a homozygous recessive individual.It is primarily used to determine the genotype of an organism that exhibits a dominant phenotype.If the offspring show both dominant and recessive traits,the parent was heterozygous.If all offspring show the dominant trait,the parent was homozygous dominant.Therefore,a test cross is used to identify the genotype.

$A$ test cross is useful to determine the...

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