The $9 : 3 : 3 : 1$ dihybrid ratio is due to?

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Solution

9:3:3:1 is the phenotypic ratio obtained in the $F_{2}$ generation of a dihybrid cross.
Where the values 9 and 1 represent parental phenotypes, the other two values represent new combination. This is because of independent assortment of alleles belonging to the characters considered in the cross.

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The 9:3:3:1 dihybrid ratio is due to
(a) Segeregation (b) crossing over (c) independent assortment
(d) homologus pairing

The phenotypic dihybrid ratio in F2 generation is ________.

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