Question Detail

BIO 201 Genetics 1 Objective Question

Question

What phenotypic ratio is typically expected from a classic Mendelian dihybrid cross (AaBb x AaBb) assuming independent assortment and complete dominance?
Options
A 1:2:1
B 9:3:3:1
Correct Answer
C 9:3:4
D 12:3:1
Correct Answer

Option B is the correct answer.

Detailed Explanation

A selfed dihybrid cross AaBb x AaBb producing independent assortment and complete dominance yields the canonical 9:3:3:1 phenotypic ratio.

Hint

No hint available

Question Info