🤓 Based on our data, we think this question is relevant for Professor King's class at UCF.
For this problem, having 16 possible outcomes suggests the involvement of 2 genes for color. And as shown by the F1 progeny, being a cross between two different true-breeding individuals, red is the dominant color. Thus, we let the genotype of the true-breeding red to be RRSS while the genotype of the true-breeding white is rrss. Their F1 progeny will all be dihybrids, RrSs.
In swine, when a pure-breeding red is crossed to a pure-breeding white, the F1 are all red. However, the F2 shows 9/16 red, 1/16 white,and 6/16 are a new color, sandy. Thesandy phenotype is mots likely determined by
A. complementary alleles of two different genes.
B. a heterozygote of the alleles determines red and white.
C. recessive epistasis.
D. the presence of a dominant allele at either of two loci where red is determined by the dominant alleles of both loci.