When in a typical dihybrid cross in $F_{2}$ generation one monohybrid genotype is present in 12 individuals, the total number of $F_{2}$ offspring is

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Solution

The correct option is A 48
The phenotypic ratio of different types of individuals occurring in the F2 generation of a monohybrid cross is always 3:1 (i.e., 75% dominant and 25% is recessive) Presumably, one monohybrid phenotype maybe A_bb or aaB_ which is 12 (given)
Hence to get the overall ratio, multiply by 4 then we get 12*4 =48.
So, the correct option is '48'.

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