NEET BIOLOGY

REPRODUCTION

SEXUAL REPRODUCTION IN FLOWERING PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pollination occurs when pollen grains from the anthers land on the sticky style of a pistil.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Pollination is simply the transfer of pollen grains from an anther to a stigma. Fertilization occurs much later when the pollen grains germinate on the stigma and send down a pollen tube which releases the sex cells to fertilize the ovules.

Detailed explanation-2: -Self-pollination is referred to as the primary type of pollination, which occurs by transferring the pollen grains directly from the anther into the stigma of the same flower.

Detailed explanation-3: -In all wind-pollinated flowers, the mature stigma is found rough and sticky.

Detailed explanation-4: -The pollen grains are light and non-sticky so that they can easily be carried by air currents. The flowers have no petals so that stamens remain well-exposed which helps in an easy dispersal of pollen by wind currents. Flowers have a large feathery stigma to easily trap the airborne pollen grains.

There is 1 question to complete.