alleryIn a typical Mendelian dihybrid cross of two heterozygous parents (RrYy x RrYy), what phenotypic ratio appears in the F2 generation?
A3 : 1
B1 : 2 : 1
C9 : 3 : 3 : 1
D1 : 1 : 1 : 1
Answer & Solution
Correct answer: C. 9 : 3 : 3 : 1
Independent assortment of two gene pairs produces the 9:3:3:1 ratio in F2, which is the product of two 3:1 monohybrid ratios.
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