The Punnett square for a monohybrid cross Aa × Aa shows the expected genotypic ratio

1 AA : 2 Aa : 1 aa Reading the four boxes: 1 AA, 2 Aa, 1 aa → 1:2:1 genotypic ratio.

Mendelian Genetics

AP Biology· difficulty 2/5

The Punnett square for a monohybrid cross Aa \times Aa shows the expected genotypic ratio

Explanation

Reading the four boxes: 1 AA, 2 Aa, 1 aa \to 1:2:1 genotypic ratio.

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