Q177 / 200 · NEET 2006 · Zoology

Test cross involves:

A
crossing between two genotypes with dominant trait
B
crossing between two genotypes with recessive trait
C
crossing between two $\mathrm{F}_1$ hybrids
Correct answer
D
crossing the $\mathrm{F}_1$ hybrid with a double recessive genotype

Solution

Test cross is a cross between an organism with unknown genotype and a recessive parent. It is used to determine whether an individual is homozygous or heterozygous for a trait.

Hence, the correct answer is option: 'D'.

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