A botanist crosses a pea plant that is homozygous dominant for seed color and one that is homozygous recessive for seed color. This resulted in all heterozygous offspring in the F1 generation. What would be the genotypic ratio for seed color in the F2 generation if two F1 pea plants are crossed?
a) 1:2:1
b) 3:1
c) 1:1
d) 2:1:1