Answer: Pollen is transferred between two flowers of the same plant.
- A Pollen is transferred between two flowers of the same plant
- B Pollen lands on the stigma of the same flower
- C Pollen always comes from a genetically different parent plant
- D No pollinator is involved
Correct answer: A. Pollen is transferred between two flowers of the same plant
Explanation: In geitonogamy pollen is carried to the stigma of another flower on the same plant, so although an agent is needed, the pollen is genetically identical to self-pollen.
Double fertilisation in angiosperms: one male gamete fuses with the egg to form the diploid zygote (syngamy), while the second fuses with the two polar nuclei to form the triploid primary endosperm nucleus (triple fusion). Image: Triploid, CC BY 3.0, via Wikimedia Commons.
Concept context
Flower structure, pollination, double fertilization, and seed/fruit development - the highest-scoring Class 12 biology chapter in NEET.
Read the full Sexual Reproduction in Flowering Plants notes →