Ploidy Level of Different Cells in Ovule Sac | NEET | RuBio Classes скачать в хорошем качестве

Ploidy Level of Different Cells in Ovule Sac | NEET | RuBio Classes

#NEET #PloidyLevel #NEETDoubleFertilization #NEETFertilizationinPlant #NEETSexualReproduction #NEETBiology #NEETTripleFusion Ploidy Level of Different Cells in Ovule Sac | NEET by RuBio Classes Ploidy is a term referring to the number of complete sets of chromosomes in a cell-like haploid- one set and diploid- two sets. Nucellus, microspore mother cells, and megaspore mother cells are part of the sporophyte. The nucellus is the central part of the ovule containing the embryo sac and is diploid, and megaspore mother cell is the one which is going to form 4 haploid megaspores by meiosis so again being a parent cell their ploidy is 2n. In plants, the structure that encloses the reproductive cells in females contains the nucleus, the integument, and the female gametophyte (also known as ovule). The oval structure present in the ovule of flowering plants is known as the embryo sac or female gametophyte. Female gametophytes are the haploid generation of the plant formed by meiosis, a part of its life cycle, and ploidy is n. Apart from the growing embryo, the endosperm constitutes an organism and 70% of angiosperm species have polyploid endosperm cells. They are usually triploid (3n) but can vary widely from diploid (2n) to 15n. One male nucleus of pollen grain fuses with the two polar nuclei (in the embryo sac) forming a triploid (3n) endosperm. The other nucleus combines with the egg cell to form a diploid (2n) zygote. Conclusion :: A lot of Questions come from this Section. So make sure you have this concept clear before the upcoming NEET Examination. Best of Luck for NEET . Don't forget to Like, Share and Comment on our Videos. So that we can help you solve each and every single Question regarding NEET Examination with ease.