What is the phenotypic ratio obtained in the F2 generation of a Mendelian dihybrid cross?
Answer and explanation
Correct answer: A.
- Step 1: In a dihybrid cross involving two traits (e.g., round yellow seeds wrinkled green seeds ), the F1 generation is heterozygous .
- Step 2: Self-pollination of F1 yields an F2 phenotypic ratio of .
Answer
.
Why not the others: is the monohybrid phenotypic ratio; is the monohybrid genotypic ratio; and is complementary gene interaction.
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