a certain kind of plant can have green leaves (G) or yellow leaves (g) and can also have blue flowers (B) or white flowers (b). when a plant with the GgBb genotype produces pollen, what genotypes will be found among the pollen grains? A. Only GB and gb B. Gg, GG, BB, and bb C. GB, Gb, gb, and gB D. Only GB and Gb