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प्रश्न
How many different genotypes are produced in the F₂ generation from a dihybrid cross?
विकल्प
8 genotypes
9 genotypes
16 genotypes
4 genotypes
MCQ
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उत्तर
A Punnett square of F₁ × F₁ (RrYy × RrYy) produces 16 combinations, giving 9 different genotypes and 4 different phenotypes in F₂. The 9 genotypes are: RRYY, RRYy, RrYY, RrYy, RRyy, Rryy, rrYY, rrYy, and rryy.
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