Topic: Double fertilization, endosperm and embryo development· Reproduction

What is the fate of the male gametes discharged in the synergid ?

1. One fuses with the egg, other(s) degenerate(s) in the synergid.

2. All fuse with the egg.

3. One fuses with the egg, other(s) fuse(s) with synergid nucleus.

4. One fuses with the egg and other fuses with central cell nuclei.

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

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Answer: 4. One fuses with the egg and other fuses with central cell nuclei.

Key idea: Double fertilisation: both male gametes released into the synergid are used.

The pollen tube discharges two male gametes near the egg apparatus. One fuses with the egg (syngamy) to form the zygote. The other moves to the central cell and fuses with the two polar nuclei (triple fusion) to form the primary endosperm nucleus (3n). So one gamete fuses with the egg and the other with the central cell nuclei.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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What is the fate of the male gametes discharged in the synergid ?

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