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Biology Genetics PYQ
In a dihybrid cross, the phenotypic ratio of the F₂ generation in a typical Mendelian inheritance is:
A 3 : 1
B 9 : 3 : 3 : 1
C 1 : 2 : 1
D 1 : 1 : 1 : 1
Explanation: A dihybrid cross between two heterozygotes (AaBb × AaBb) yields a 9:3:3:1 phenotypic ratio in F₂, reflecting independent assortment of the two gene pairs.
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