Question

Write the ratio of genotype YY and Yy in the F2 progeny

Answer 1

Explanation:

YY = 4

Yy  = 8

TRICK

In F2 , Double homozygous  = 4 (like RRYY... )

           Double Heterozygous = 4 (ie RrYy )

           Single Heterozygous   = 8 (like RRYy ...)

Hope you understand

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