3 Short fur in cats is dominant to long fur Two heterozygous

3. Short fur in cats is dominant to long fur. Two heterozygous short fur cats are crossed. If they have four kittens, what is the probability that they will have the following phenotypes?

a) all short fur cats

b) EITHER all short fur OR all long fur

c) Three short fur and one long fur

Solution

Let the dominant-short fur be denoted by F..

Let the recessive-long fur be denoted by f..

Hetrozygous condition be Ff..

Mating Ff *Ff

(a) the probability of a short fur cat is 3 /4.

(c) three short fur will be 3/4 and one long fur will be 1/4 it means 3/4 *1/4.

(b) either condition 3/4 or 1/4..