Crossing between two genotypes with recessive trait

Crossing between two F₁ hybrids

Crossing the F₁ hybrid with a double recessive genotype

Crossing between two genotypes with dominant trait

Test cross involves-

A. Crossing between two genotypes with recessive trait
B. Crossing between two F₁ hybrids
C. Crossing the F₁ hybrid with a double recessive genotype
D. Crossing between two genotypes with dominant trait

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