[Campbell Biology P.325] What phenotypic ratio in the F2 generation of a dihybrid cross supp... | Practice Question

What phenotypic ratio in the F2 generation of a dihybrid cross supports the law of independent assortment?

  • A: 3:1
  • B: 1:2:1
  • C: 9:3:3:1
  • D: 1:1:1:1

Explanation

The text and Figure 14.8 show that the hypothesis of independent assortment predicts a 9:3:3:1 phenotypic ratio in the F2 generation. Mendel's experimental results 315:108:101:32 closely matched this prediction, supporting the law.