Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in `F_(1)` generation are then cross-bred to produce `F_(2)` generation of pea plants.
(i) What do the plants of `F_(1)` generation look like ?
(b) What is the ratio of all plants to dwarf plants in `F_(2)` generation ?
(c) Which type of plants were missing in `F_(1)` generation but reappeared in `F_(2)` generation ?