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  4. How many types of genotypes are formed in F2 progeny obtained from self pollination of a dihybrid F1 ?

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Q. How many types of genotypes are formed in $ F_{2} $ progeny obtained from self pollination of a dihybrid $ F_{1} $ ?

Chhattisgarh PMTChhattisgarh PMT 2005

Solution:

Nine types of genotypes are formed in $F_{2}$ progeny obtained from self pollination of a dihybrid $Fi$. These are-
$R R Y Y, R R Y y, R r Y Y, R R y y, R r Y y, R r y y, rryy, r r Y y$ and $rryy.$