Suppose you have a species of bell peppers with three different colors: Red, Yellow, and Green. You cross a true-breeding Red line and a true-breeding Yellow line. The F1 progeny are all Red, with no traces of Yellow or Green pigment present. Then, you take the F1 progeny and self-cross them to each other. In the F2 generation you see a 3:1 phenotype ratio of Red : Yellow progeny. What is the most likely conclusion you can draw from these results? A. Red, Yellow, and Green pigments are determined by co-dominant alleles at the same locus.
B. Red and Yellow are encoded by two alleles at the same locus, which show incomplete dominance.
C. Red, Yellow, and Green pigments are sex-linked alleles, so Green only shows up in certain crosses.
D. Red and Yellow are two alleles at the same locus, where Red is dominant and Yellow is recessive.
E. Red and Yellow are two alleles at the same locus, where Yellow is dominant and Red is recessive.