Cell Division Meiosis YouTube Lecture Handouts
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Dr. Manishika Jain in this session explains the concept of cell division - meiosis, its 2 stages and interkinesis.Stages of meiosis I and II are explained:ProphasePrometaphaseMetaphaseAnaphaseTelophaseFollowed by cytokinesis.
The chromosomes condense, and the nuclear envelope breaks down. crossing-over occurs.
Pairs of homologous chromosomes move to the equator of the cell.
Homologous chrmosomes move to the oppisite poles of the cell.
Telophase I and Cytokinesis
Chromosomes gather at the poles of the cells. the cytoplasm divides.
A new spidle forms around the chromosomes.
Chromosomes line up at the equator.
Centromeres divides. chromatids move to the opposite poles of the cells.
Telophase II and Cytokinesis
A nuclear envelope forms around each set of chromosomes. the cytoplasm divides.
Significance of Meiosis
Formation of Gamete
Maintenance of Chromosome Number
Assortment of Chromosome
Basic Relationship of Organism