Answer:
On the off chance that genuine reproducing Tall [T] plants are crossed (reared) with genuine rearing short [t] plants, all the up and coming age of plants, called F1, are for the most part tall. Next, that self-pollinated F1 plants (or cross-pollinated with other F1 plants) create an F2 age with 3/4 of the plants tall and 1/4 short.
1/4 of the F2 age are short plants, which deliver just short plants in the F3 age, on the off chance that they are self-pollinated (or crossed with other short F2 plants;) these F2 plants breed genuine.
1/4 of the F2 age (1/3 of the tall plants) are tall plants that create just tall plants in the F3 age, in the event that they are self-pollinated; these tall F2 plants breed true.
1/2 of the F2 age (2/3 of the tall plants) are tall plants that create 1/4 short plants and 3/4 tall plants in the following [F3] age, in the event that they are self-pollinated. This is a similar extent of tall to short that F1 plants create.