অসমরেণুপ্রসূ উদ্ভিদের মধ্যে উত্পাদিত বীজগুটি দুই ধরনের বড় না; একটি মহিলা gametophyte মধ্যে ওভিউল বিকাশ

megaspore's Usage Examples:

the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center.

These plants have two spore types, megaspores and microspores.

A megaspore mother cell, or megasporocyte, is a diploid cell in plants in which meiosis will occur, resulting in the production of four haploid megaspores.

the megaspore, which arises from megasporogenesis, develops into the embryo sac, which is where the female gamete is housed.

These megaspores then develop.

The smaller of these, the microspore, is male and the larger megaspore is female.

producing male and female gametophytes were of different sizes, the female megaspores tending to be larger, and fewer in number, than the male microspores.

female spore is considerably larger than a male spore, it is termed a megaspore.

megaspores are dispersed from sporangia either passively or by active ejection.

are the megasporangia, each of which will produce a single large female megaspore.

meiosis, producing four megaspores.

Only one is a functional megaspore whereas the others stay dysfunctional or degenerate.

The megaspore undergoes several.

seed megaspore within the nucellus.

In some, however, three other, aborted megaspores were still present that together with the functional megaspore represented.

cell division, producing four haploid megaspores.

Only one of the four resulting megaspores survives.

This megaspore undergoes three rounds of mitotic division.

The spherical megaspores are 400-570 micrometers in diameter, and bear smooth ridges.

The white spherical megaspores are 400 to 650 micrometers in diameter, and bear rough-crested ridges.

The best way to identify them is by examining their megaspores under a microscope.

Microspores are land plant spores that develop into male gametophytes, whereas megaspores develop into female gametophytes.

The megaspore membrane of G.

Spores of two distinct sizes (heterospory or anisospory): larger megaspores and smaller microspores.

due to it having a chromosome count of 2n=22, the presence of laevigate megaspore ornamentation, and the differences of its habitat in comparison to similar.

megaspore's Meaning':

larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte