NEET 2017 · Class 12

Sexual Reproduction in Flowering Plants

[DIAGRAM: Development of the female gametophyte in an angiosperm ovule showing the megaspore mother cell in the nucellus undergoing meiosis to form four haploid megaspores, three degenerating, and the functional megaspore developing by mitosis into an 8-nucleate embryo sac.] Functional megaspore in an angiosperm develops into ?

  1. (A)Endosperm
  2. (B)Embryo sac
  3. (C)Embryo
  4. (D)Ovule

The NCERT line that answers it

Verbatim line

A cell of the archesporium, the megaspore mother cell divides meiotically and one of the megaspores forms the embryo sac (the female gametophyte).

Chapter
Sexual Reproduction in Flowering Plants
Section
intro ~~HUMAN REPRODUCTION~~ SEXUAL REPRODUCTION IN FLOWERING PLANTS
Page
22
Words matched
23 of 23

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

6667, emb=0.7129, combined=0.6944). Verified: high — The span explicitly states 'one of the megaspores forms the embryo sac', which directly and conclusively answers the MCQ about what the functional megaspore develops into.

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