Cat coat color is an X-linked trait.

Calico cats typically have patches of black, white, and orange on their coats as a result of X-inactivation. Most calico cats are female, but rarely a male calico will be born into a litter.

Which of the following could explain calico coat color in a male kitten?

Choose 1

(choice A)
A
The male kitten has a genotype of XXY.

(choice B)
B
The male kitten has a genotype of XXX.

(choice C)
C
The male kitten has a genotype of XYY.

(choice D)
D
The male kitten has a genotype of YY.

(F) 0.84

Explanation:

In this population of cats, there are two possible phenotype related to the tail length, long tail and short tail. According with the information given, we have the following distribution of phenotypes and genotypes in the population:

The frequency of cats with long tail in the population can be calculated as the fraction of the cats that have the phenotype "long tail" in the population

Fraction of long tail phenotype=(TT individuals +  Tt individual)/(Total population)=(180+240)/(180+240+80)=420/500=0.84

So, the fraction of cats with long tail in the population is 0.84