Question

Winged pollen grains are present in
A) Mango
B) Mustard
C) Pinus
D) Cycas

Answer 1

Hint: Pollination is defined as the act of transferring the pollen grains from its site of generation (male anther) to its targeted site (female stigma).

Complete Answer:
Option A: Mangoes are defined as self sufficient in case of its fertilization process. They are monoecious so that a single fruit tree does not require cross pollination for producing its fruit. Some varieties such as polyembryonic types may never ever require pollination process to develop its fruit. Therefore, this is the incorrect option.
Option B: Mustard’s pollination is initiated by insects as they are known to produce nectar and bear heavy and sticky pollen grains. Therefore, this is the incorrect option.
Option C: Pinus is an anemophilous plant which is known to produce a large count of pollen grains. These pollen grains are transferred to their site of fertilization by wind. The pollens produced by the Pinus are winged in their outward appearance. Therefore, this is the correct option.
Option D: Cycas undergoes pollination by wind; however, does not result in the production of winged pollen. Therefore, this is the incorrect option.

Thus, the correct Option C) Pinus.

Note: Micropyle plays a chief role in the pollination process of the Pinus. Micropyle is a small opening in the surface of an ovule through which the pollen tube can penetrate. In a ripe seed, it can be seen as a small pore.