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Question

When a hybrid plant with pink (Rr) flower of Mirabilis is crossed with white flower, the expected phenotype ratio is ____.

A
red : pink : white, 1 : 2 : 1
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B
pink : white, 1 : 1
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C
red : pink, 1 : 1
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D
red : white, 3 : 1
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Solution

The correct option is B pink : white, 1 : 1
Hybrid - Rr pink flower and white flower - rr
Genotypes: Rr x rr
Gametes: R, r r
Offspring: Rr, rr
The ratio of pink flower: white flower = 1:1
So, the correct answer is 'pink : white, 1 : 1'

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