In peas, a pure tall plant (TT) is crossed with a pure short plant (tt). The ratio of pure tall plants to pure short plants in F₂ generation will be:(a) 1:3    (b) 3:1    (c) 1:1    (d) 2:1
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Correct Answer: (c) 1:1

Explanation:

In pea plant, when pure tall pea plant (TT) is crossed with pure short (tt) plant,

F1 generation will be all Tt (tall plant).

                                        (Pure Tall)   TT        x        tt   (Pure short) 

F1 generation                                                 Tt    (All tall plant)

Self-pollination                                 Tt         x         Tt

F2 generation                         TT           Tt           Tt           tt

                                                     1                      2                     1

Thus, the ratio of pure tall plants (TT) to pure short plants (tt) is 1:1.

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Updated on: 21-Mar-2023

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