Sample Questions — Double fertilization
Try 5 questions below from Double fertilization. Get all 30 in the MedicNEET app.
MCQ
Match the following reproductive processes with their biological products:
A. Triple fusion – I. Triploid nucleus
B. Syngamy – II. Diploid zygote
C. Ovule transformation – III. Seed
D. Ovary transformation – IV. Fruit
✅ Correct Answer: A
Matches process with product from fertilisation outcomes.
MCQ
Double fertilisation is a characteristic feature of:
✅ Correct Answer: D
Double fertilisation occurs only in angiosperms.
👆 Want all 30 Double fertilization questions? Get them in the app.
Download MedicNEET →
MCQ
Match the following events with their outcomes:
A. Syngamy – I. Embryo
B. Triple fusion – II. Zygote formation
C. Zygote development – III. Primary endosperm nucleus
D. Ovule transformation – IV. Seed
✅ Correct Answer: B
Syngamy is the fusion of one male gamete with the egg cell, directly forming a diploid Zygote. Triple fusion is the fusion of the second male gamete with the two polar nuclei, resulting in the triploid Primary Endosperm Nucleus (PEN). Following fertilization, the Zygote development begins, leading to the formation of the Embryo. Finally, the post-fertilization changes involve the Ovule transformation into the Seed.
MCQ
The primary endosperm nucleus (PEN) is triploid. Which fusion explains this ploidy?
✅ Correct Answer: B
Two haploid polar nuclei (n+n) fuse with one haploid male gamete (n), forming a 3n PEN.
MCQ
Choose the correct chronological sequence after fertilisation:
✅ Correct Answer: B
Endosperm forms first, followed by embryo development. Ovule becomes seed, ovary becomes fruit.
Practice All 30 Questions from Double fertilization
You've seen 5 sample questions. Get all 30 with detailed NCERT-mapped explanations in the MedicNEET app.
📲 Download MedicNEET FreeAvailable on Android • 12,771 Biology Questions • 3 Formats