Q. 22 4.8( 5 Votes )

In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 is
A. 1 : 3

B. 3 : 1

C. 1 : 1

D. 2 : 1

Answer :

When pure bred tall plant with phenotype (TT) crossed with short plant with phenotype (tt), the possible progeny in F2 generation: TT (1), tt(1) and Tt (2). Thus the ratio of pure tall (TT) to pure short (tt) is 1:1.

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