Question

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:

• A. Xenogamy
• B. Autogamy
• C. Cleistogamy
• D. Geitonogamy

Hint:

Geitonogamy results in genetic uniformity as both flowers belong to the same plant.

Answer 1

The Correct Option is D

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called Geitonogamy.

(A) Xenogamy - Incorrect: This refers to cross-pollination between flowers of different plants.

(B) Autogamy - Incorrect: This describes self-pollination within the same flower.

(C) Cleistogamy - Incorrect: This involves self-pollination in closed, non-opening flowers.

(D) Geitonogamy - Correct: This is the precise term for pollination between different flowers on the same plant (genetically self-pollination).

The correct answer is (D) Geitonogamy, which represents a form of self-pollination despite involving different flowers.

Answer 2

Geitonogamy refers to the transfer of pollen from the anther to the stigma of a different flower on the same plant. It is a form of self-pollination where pollination occurs between flowers on the same plant.

Xenogamy refers to cross-pollination, where pollen is transferred between two flowers from different plants.

Autogamy is self-pollination where pollen from the same flower fertilizes its own stigma.

Cleistogamy involves the self-pollination in closed flowers that never open, ensuring pollination occurs without exposure to external factors.

Option (D) is correct because geitonogamy is the transfer of pollen between flowers of the same plant.