microspore उदाहरण वाक्य

उदाहरण वाक्य

1. These microspore mother cells, also called microsporocytes, then undergo meiosis and become four microspore haploid cells.
2. These microspore mother cells, also called microsporocytes, then undergo meiosis and become four microspore haploid cells.
3. Plants with heterosporous life cycles using microspores and megaspores arose independently in several plant groups during the Devonian period.
4. In heterosporous organisms, two types of spores exist : microspores give rise to males and megaspores to females.
5. In megasporogenesis, often three of the four spores degenerate after meiosis, whereas in microsporogenesis all four microspores survive.
6. For example, in flowering plants, microspores ultimately produce microgametes ( sperm ) and megaspores ultimately produce megagametes ( eggs ).
7. Microspores are structures that are part of the alternation of generations in many seedless vascular cryptogams, all gymnosperms and all angiosperms.
8. In organisms that are heterosporous, two types of spores occur : Microsporangia produce male microspores, and megasporangia produce female megaspores.
9. In gymnosperms, such as conifers, microspores are produced through meiosis from microsporocytes in pollen sacs, which contain the microsporocytes.
10. In heterosporous vascular plants ( plants that produce both microspores and megaspores ), the gametophyte develops endosporically, within the spore wall.