What will be the genotypic ratio of the cross between Rr and rr ?

1 : 2 : 1

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3 : 1

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1 : 1

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1 : 1 : 1

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Solution

The correct option is D 1 : 1
The cross between Rr, a plant with heterozygous condition for red flowers and rr, a plant with homozygous recessive condition with white flowers will produce two types of genotypes in progeny- Rr and rr in equal proportions.
Thus, the correct answer is option C.

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r r

n - 1 \sum r = m \frac{1}{r (r + 1)} = \frac{1}{11} (w h e r e m, n ϵ N)

n - 1 \sum r = m \frac{1}{r (r + 1)} = \frac{1}{11}

m, n \in N

_{2}

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