Test cross in plants or in Drosophila involves crossing
(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.
(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.