Complete the following association: skin cancer is to exposure to uv radiation as a. keratin is to tanning. b. acne is to excessive secretion of oil. c. waterproofing is to temperature regulation. d. melanin is to acne.

In guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?