Q.

Pea plant with true breeding nature for yellow and wrinkled seeds is crossed with another true breeding plant with green and round seeds. The F1individuals are intercrossed and there is formation of 240 pea plants in F2 generation. How many of theF2 plants have the genotype YY Rr

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Detailed Solution

The probability of formation of F2 individuals with YY Rr genotype is product of probability of formation of YY genotype and Rr genotype i.e.14 × 12 = 18. 18 individuals of F2have this genotype i.e.240 ×18 = 30
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