Question

describe the two stages of gamatophytes of five developed by Moses class 11 NCERT​

Answer 1

Answer:

DEVELOPMENT OF FEMALE GAMETOPHYTE

Development of ovule upto the formation of megaspore is called megasporogenesis.

The micropylar end of the nucellus a single cell is differentiated and it is the megaspore mother cell or megasporocyte.

The ovule arises as a small projection of homogeneous tissue on the placenta in the ovary.

The diploid megaspore cell undergo meiosis to form four haploid megaspore.

These four megaspore are arranged in linear tetrads.

Out of the four megaspore the upper three megaspores at the micropylar end degenerates and disappears.

The basal region will become the funicle.

Answer 2

Answer:

These spores develop into two distinct types of gametophytes; one type produces sperm and the other produces eggs. The male gametophyte develops reproductive organs called antheridia (produce sperm) and the female gametophyte develops archegonia (produce eggs).

Explanation:

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