The cross in plants or in Drosophila involves crossing

The cross in plants or in Drosophila involves crossing

Options

(a) between two genotypes with recessive trait
(b) between two F₁ hybrids
(c) the F₁ hybrid with a double recessive genotype
(d) between two genotypes with dominant trait

Correct Answer:

the F₁ hybrid with a double recessive genotype

Explanation:

In test cross, genotype of an organism showing dominant phenotype is determined by crossing it with homozygous recessive genotype.

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