Question

A population of black cat has been interbreeding however in one litter a sole gray kitten is born the successive generations now have a few gray cat witch mutualism is responsible for introducing its new allele and the cat population

Answer 1

Sounds very much like a random mutation

Answer 2

Explanation:A population of black cats has been interbreeding. However, in one litter, a sole gray kitten is born. The successive generations now have a few gray cats. Which mechanism is responsible for introducing this new allele in the cat population?

The Question, these are the answers I need help.

A.

Gene selection

B.

Gene mutation

C.

Gene flow

D.

Genetic drift

because I do not know help.