You're investigating guinea pig coat genetics, and you've found an interesting new phenotype: spiral guinea pig fur. If you take a purebred wavy-hair guinea pig and cross it with a purebred kinked-hair guinea pig, you get all spiral-hair progeny. If you mate spiral-hair guinea pigs with each other, the progeny have a phenotypic ratio of 9 spiral: 3 wavy: 3 kinked: 1 straight. Which of the following is most likely to be true given your experimental results?

W) There are two different genes that result in the wavy and kinked phenotypes, and there is an epistatic interaction between them

X) There are two different genes that result in the wavy and kinked phenotypes, and they are linked

Y) There are two different genes that result in the wavy and kinked phenotypes, and they are independently assorting

Z) There is only one gene with a number of different alleles
Y) THERE ARE TWO DIFFERENT GENES THAT RESULT IN THE WAVY AND KINKED PHENOTYPES, AND THEY ARE INDEPENDENTLY ASSORTING