Answer: Multiple embryos develop in one seed (from zygote, synergids, nucellus cells, or unfertilized egg).
- A More than one ovule matures and develops fully within a single ovary chamber simultaneously
- B Multiple embryos develop in one seed (from zygote, synergids, nucellus cells, or unfertilized egg)
- C Seeds are released from the mature fruit in tightly clustered groups all at the same time
- D A single flower develops several largely independent and separate pistils side by side
Correct answer: B. Multiple embryos develop in one seed (from zygote, synergids, nucellus cells, or unfertilized egg)
Explanation: Polyembryony: multiple embryos in one seed. Examples: Citrus seeds. Can arise from additional zygotes, synergid cells, or nucellus cells developing into extra embryos (adventive embryony).
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 →