In the F2 generation of Mendel’s crosses,A. all plants had the dominant trait.B. half of the plants had the dominant alleleC. all plants had both the dominant and recessive alleles.D.one in four plants had two alleles for the recessive trait.
D is the correct answer. In the F2 generation, 1 in 4 plants have two alleles for the dominant trait, 2 in 4 have one dominant and one recessive alleles and 1 in 4 has two alleles for the recessive trait.
