The genotype of a dominant parent is determined by crossing it with the recessive parent. This cross is called as

Back cross

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Test cross

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Monohybrid cross

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None of the above

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Solution

The correct option is B Test cross
A test cross is performed to determine the genotype of a dominant parent if it is heterozygous or homozygous-dominant. For the purpose, a dominant parent is crossed with a homozygous recessive parent.
Backcross is cross between $F_{1}$ hybrid and one of the parents to deduce the genotype of both parents and the hybrid.
A monohybrid cross is a mating between two organisms with different variations at one genetic chromosome of interest.
Outcross refers to breeding between two distantly related organisms.
So, the correct answer is option B.

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