The method used to determine whether an indiv | vedclass

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(D) $Test 	ext{ } cross$ is a genetic cross between an individual of unknown genotype and a homozygous recessive individual. If the offspring show a

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Test cross

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(D) $Test 	ext{ } cross$ is a genetic cross between an individual of unknown genotype and a homozygous recessive individual. If the offspring show a $1:1$ phenotypic ratio, the unknown individual is heterozygous. If all offspring show the dominant phenotype, the unknown individual is homozygous dominant. Therefore, it is the standard method to determine the zygosity of an organism.

The method used to determine whether an individual is homozygous or heterozygous is known as:

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