A geneticist working at a zoo has spent several years studying coat color in foxes. She found that when two platinum-colored foxes are crossed, litters with both platinum and silver-colored offspring are always produced. Over the years, she collected the following data.\: platinum female fox crossed with a male platinum fox → 220 platinum foxes and 110 silver foxes. Which of the following is the most likely explanation for platinum and silver coat color in foxes? a. Silver is homozygous recessive and platinum can be either homozygous or heterozygous.
b. Silver is homozygous, platinum is heterozygous, and the platinum allele is lethal when homozygous.
c. Silver is caused by a homozygous recessive condition in either or both of two separate genes that are interacting ecstatically.
d. Platinum is caused by the recessive allele of an x linked gene.