Question

If T (tallness), Y (yellow colour) are dominant, when a plant heterozygous for both traits is selfed, then the ratio of pure homozygous dwarf and green would be

(A) 3/16

(B) 1 /3

(C) 1 /16

(D) 1/4

Answer 1

Correct Option- (A) 3 /16 

Explanation -

When a plant heterozygous for tallness and yellow colour are selfed, they will produce F₂ generation with 16 different genotypes. Out of these, only one will be homozygous recessive genotype. Hence, the ratio of pure homozygous dwarf and green is 1 : 16.