Question

A typical example of cross- pollination is
(A) Wheat
(B) Tomato
(C) Rice
(D) Pea

Answer 1

Hint: In plants the sexual reproduction is called pollination. It is the process in which the male and the female gamete of the flower fuses together to form the embryo. And this embryo develops into the seed. And the ovary develops into the fruit.

Complete answer:
The pollination is classified into two types as self-pollination and the cross pollination. In flowers, the androecium is the male part of the plant and the gynoecium is the female part of the plant. In this pollen is the male reproductive gamete that is produced into the anther. The ovule is the female reproductive gamete. The self-pollination takes place, when the pollen and the ovule fuses are from the same flower.

Cross pollination is the type of pollination in which the fusion occurs from the gametes of the different flowers of the same plant or from the different plants. This is possible by the transmission of the pollen grains to the stigma by the action of the wind, water, insects, or animals. The examples of the cross-pollinated plants are grasses, maple trees, tomato etc. In tomatoes the pollen grains are transmitted by the bees or the insects. Except tomato, all other plants given in the options are self-pollinated plants.

Hence the correct answer is OPTION(C)

Note: Self-pollination is possible only if the plant has the characteristics of the bisexual flowers in it. If the plants possess male and the female gamete in itself, then the pollen grains directly shed on the stigma and enter the ovule through the pollen tube. In hibiscus, even though it is bisexual, it follows the cross pollination.