Question

Which of the following depicts Mendel's dihybrid ratio?

• A. 3 : 1
• B. 9 : 3 : 3 : 1
• C. 9 : 7
• D. 15 : 1

Answer 1

Answer: (B)

9 : 3 : 3 : 1

A dihybrid cross is a cross between F${}_1$ offspring (first - generation offspring) of two individuals that differ in two traits of particular interest.

For example : RRyy / rrYY or RRYY/ rryy parents result in F${}_1$ offspring that are heterozygous for both R and Y (RrYy)

Thus, Mendel's dihybrid ratio is depicted by: 9:3:3:1