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Questions  

Which one of the following crosses would have 1:1:1:1 genotypic ratio ?

a
TtRR × ttrr
b
TTRR × ttrr
c
TtRr × ttrr
d
TtRR × TTrr.

detailed solution

Correct option is C

When Ttr is crossed with ttrr, then the offspring will have genotype TtRr, ttrr, Ttrr, ttRr in the ratio of 1:1:1:1.

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