Suppose that Mendel looked simultaneously at four traits of his pea plants (and each trait exhibited dominance). If he crossed a homozygous dominant plant with a homozygous recessive plant, all the F1 offspring would exhibit the dominant phenotype. If he selfed the F1 plants, how many different types of gametes would be produced? How many different phenotypes would appear in the f2 generation? How many different genotypes would appear? what proportion of the F2 offspring would be of the fourfold recessive phenotype?