Biology 3rd Edition by Peter Russell, Paul Hertz, Beverly McMillan

تمرين 9

You cross a lima bean plant from a variety that breeds true for green pods with another lima bean from a variety that breeds true for yellow pods.You note that all the F1 plants have green pods.These green-pod F 1 plants, when crossed, yield 675 plants with green pods and 217 with yellow pods.How many genes probably control pod color in this experiment? Give the alleles letter designations.Which is dominant?