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Factors Affecting Plant Growth

On selfing Yy...

Question

On selfing YyRr, a total of 400 plants were obtained. How many of these will have the genotype YyRr?

A

100

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B

225

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C

50

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D

300

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Solution

The correct option is A 100
According to genotypic ratio of independent assortment for dihybrid cross, the YyRr genotype will be found in 100 plants out of 400 plants (as in 16 plants 4 have this type of genotype).

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Factors Affecting Plant Growth

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