Answer: Pollen from the same flower or same plant fertilizes the ovule.
- A Pollen is carried across a field by air currents
- B Pollen from the same flower or same plant fertilizes the ovule
- C Bees or other insects carry pollen between separate plants
- D Pollen floats on water to reach a different plant
Correct answer: B. Pollen from the same flower or same plant fertilizes the ovule
Explanation: Self-pollination: pollen from a flower reaches the stigma of the same flower or another flower on the same plant. Results in less genetic diversity.
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 →