Question

Phenotypic ratio in $F_2$ in a cross showing dominant epistasis is _______

• A. 12 : 3 : 1
• B. 9 : 6 : 1
• C. 15 : 1
• D. 9 : 3 : 4

Answer 1

The correct option is C 15 : 1

When a dominant allele masks the expressoion of both dominant and recessive alleles of another gene, the pattern of inheritance obtained is called dominant epistasis. Awn character in rice shows Dominant epistasis.