Question

What was the phenotypic ratio observed by Mendel, of two separate traits, shape and colour of seeds?

• A. 9:3:3:1
• B. 9:2:3:1
• C. 9:2:3:1
• D. All of the above

Answer 1

The correct option is A 9:3:3:1

When two separate traits are considered for a cross, it is called a dihybrid cross. In a dihybrid cross, the phenotypic ratio in the F2 generation is 9:3:3:1.