Biology NEET Previous Year Question Paper NEET 2026 Previous Year Question Paper Single Correct MCQ
Published on: August 13, 2026

Which one of the following types of pollination brings genetically different types of pollen grains to the stigma?

A
Geitonogamy
B
Xenogamy
C
Cleistogamy
D
Autogamy

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Text Solution

Verified by Experts
The correct answer is:
B

Xenogamy: Transfer of pollen between flowers of two different plants. It is the only type that ensures genetically different pollen reaches the stigma.

Geitonogamy: Transfer between flowers of the same plant; it is genetically equivalent to self-pollination.

Cleistogamy: Pollination in flowers that never open (obligate self-pollination).

Autogamy: Pollination within the same flower.

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