Question

SS and In catde , the allele for short horns (S) is dominant over the allele for long horns (s)TWO short horn cows are bred and produce four offspringThree have short horns and one has long hornsWhat are the most likely genotypes of the parents?

A. SS and ss
B. Ss and ss
C. SS and Ss
D. Ss and Ss

Why is (C) not the right answer?

Answer 1

Correct answer - D Ss and Ss.

Why? As we set the punnet square, Ss and Ss. We get SS, Ss, Ss(3 Short horns). And ss(1 Long horns).