What was the ratio of tall plants vs short plants in Mendels experiments?
One fourth of the F2 plants have two alleles for tallness, 2/4 of 1/2 of the F2 plants have one allele for tallness, and one allele for shortness. Because the allele for tallness is dominent over the allele for shortness, 3/4 of the F2 plants should be tall. Overall, there are 3 tall plants for every 1 short plant in the F2 generation. Thus, the ratio of tall plants to short plants is 3:1.
