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A tall plant(TT) is crossed with a dwarf...

A tall plant(TT) is crossed with a dwarf plant(tt). All `F_(1)` plants showed tall phenotype. Which of the following correctly defines a test cross?

A

`T T(F_(1))xxTt(P)`

B

`Tt(F_(1))xxTt(P)`

C

`tt(F_(1))xxTt(P)`

D

`Tt(F_(1))xxtt(P)`

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