Let Y = yellow and y = green, and R = round and r = wrinkled.You cross YYRR peas with yyrr peas.All of the F₁ individuals are yellow and round with a genotype of YyRr.You then perform an F₂ cross and get the expected 9:3:3:1 phenotypic ratio.What proportion of the F₂ plants are expected to be heterozygous for both traits? A)1/16 B)1/4 C)1/2 D)9/16

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Quizplus · Accepted Answer

In the F2 generation, the genotype YyRr (heterozygous for both traits) occurs in 1/4 of the offspring, as per Mendelian genetics for a dihybrid cross.

Let Y = Yellow and Y = Green, and R