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Dihybrid Cross

In the cross ...

Question

In the cross between RRYY X rryy, the ratio of $F_{2}$ genotypes RRYY, RrYY, Rryy and rryy would be

9:3:3:1

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2:1:1:2

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1:2:2:1

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7:5:3:1

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Solution

The correct option is C 1:2:2:1

So, RRYY: RrYY: Rryy : rryy : : 1:2:2:1

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In a didybrid cross between RRYY and rryy, the number of RrYy $F_{2}$ genotypes will be

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