Question

Geitonogamy involves transfer of pollen from the anther to the stigma of ______.

A) another flower of the same plant
B) a different flower of same species
C) the same flower
D) a different flower of different species

Answer 1

The correct answer is (A).

Depending on the source of pollen, pollination can be divided into 3 types:

Autogamy – Pollination is achieved within the same flower. Transfer of the pollen grains from the anther to the stigma of the same flower.

Geitonogamy – Pollination is achieved within the same plant. Transfer of pollen grains from the anther to the stigma of another flower of the same plant. Although geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant.

Xenogamy - Pollination is achieved between different plants of the same species. Transfer of the pollen grains from anther to the stigma of a different plant.