Question

Genotypic ratio of a dihybrid cross is

• A. 12 : 3 : 1
• B. 15 : 1
• C. 1 : 2 : 1
• D. 1 : 2 : 2 : 4 : 1 : 2 : 1 : 2 : 1

Answer 1

The correct option is D 1 : 2 : 2 : 4 : 1 : 2 : 1 : 2 : 1

Cross is made between a homozygous dominant plant with yellow round seeds to another homozygous recessive green wrinkled seeds, is called Dihybrid cross. In the F₂ generation, phenotypically, 9 are round, yellow, 3 round green 3 wrinkled yellow 1 wrinkled green and genotypically 1:2:2:4:1:2:1:2:1

So, the correct option is ‘1:2:2:4:1:2:1:2:1’.