MCQ Solution:
In genetic crosses showing recessive epistasis such as mice coat colour, F2 phenotypic ratio is
(1) 9 : 3 : 4 (2) 9 : 6 : 1
(3) 12 : 3 : 4 (4) 13 : 3
(1) 9 : 3 : 4 (2) 9 : 6 : 1
(3) 12 : 3 : 4 (4) 13 : 3