NEET BIOLOGY

Detailed explanation-1: -Flowering plants reproduce sexually through a process called pollination. Flowers contain male sex organs called stamens and female sex organs called pistils. The anther is the part of the stamen that contains pollen. Pollen contains the male gametes.

Detailed explanation-2: -Corn, papaya and cucumber produce unisexual flowers, whereas mustard, rose and petunia have bisexual flowers. Both the male and the female unisexual flowers may be present in the same plant or in different plants. Anther contains pollen grains which produce male gametes.

Detailed explanation-3: -Examples of bisexual flowers are the following flowering plants – Hibiscus rosasinensis, Pisum sativum, Petunia hybrida etc. In Unisexual flowers, either the male reproductive part i.e. the stamen is present or the female reproductive part is the pistil is present. Examples are Papaya plant, Mulberry plant etc.

Detailed explanation-4: -Not all plants need to reproduce sexually. The bramble plant produces roots at the end of this long stem; from here a new plant will grow. In spite of this method, however, sexual reproduction is still a major factor in the reproductive cycle of the bramble plant.