Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 11 PCB Single Correct MCQ
Published on: August 13, 2026

Which one is the most common type of embryo sac in flowering plants?

A
Developing from three megaspore, 8-nucleated and 7-celled
B
Developing from two megaspores, 7-celled and 7-nucleated
C
Developing from a single megaspore, 8-nucleated and 7-celled
D
Developing from two megaspores, 7-nucleated and 8-celled

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Text Solution

Verified by Experts
The correct answer is:
C

In a majority of flowering plants, one of the megaspores is functional while the other three degenerate. Only the functional megaspore develops into the female gametophyte (embryo sac). This method of embryo sac formation from a single megaspore is termed monosporic development. A typical angiosperm embryo sac, at maturity, though 8-nucleate is 7-celled.

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