Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 10 PCB Single Correct MCQ
Published on: August 13, 2026

Which of the following would still occur even if triple fusion did not happen?

A
There would be formation of the primary endosperm cell but with no PEN.
B
Embryonal development would not occur.
C
Zygote formation would occur.
D
A triploid cell would be formed if both parents are diploid.

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The correct answer is:
C

Embryo develops from the zygote, which forms by syngamy, not triple fusion. Triple fusion is the fusion of a male gamete with the two polar nuclei to form the primary endosperm nucleus (PEN) (triploid), so if triple fusion does not occur, there will be no PEN, no endosperm and no triploid cell. However, syngamy (fusion of the other male gamete with the egg) is independent of triple fusion, so zygote formation can still occur.

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