Genes R and Y follow independent assortment. If RRYY produce round yellow seed and rryy produce wrinkled green

Question

Genes R and Y follow independent assortment. If RRYY produce round yellow seed and rryy produce wrinkled green seeds, what will be the phenotypic ratio of the F2 generation?

Accepted Answer

, this describes a classic dihybrid cross involving seed shape (Round/Wrinkled) and seed colour (Yellow/Green). When the F1 hybrids (RrYy) are self-pollinated, the F2 generation exhibits four phenotypes in the ratio of 9:3:3:1 (9 Round Yellow : 3 Wrinkled Yellow : 3 Round Green : 1 Wrinkled Green). This ratio supports Mendel's Law of Independent Assortment .

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