Biology for IGCSE & O level - Inheritance (Section 8 - No. 27) | ExamPlay

Biology for IGCSE & O level - Inheritance (Section 8 - No. 27)

What is the expected phenotypic ratio for a dihybrid cross (AaBb x AaBb)?

1:1

3:1

9:3:3:1

1:2:1

Explanation

9:3:3:1 is the classic ratio.

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