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.