1. Mitosis and Meiosis in Plant Cell

2. CELL CYCLE

6. MITOSIS Metaphase Chromosomes aligned at equatorial plate (Metaphase plate)

9. MITOSIS Telophase Cytokinesis – vesicles from golgi apparatus move along microtubules to the cell where they coalesce forming cell plate.

10. MEIOSIS

11. MEIOSIS I

12. Extra pictures Interphase metaphase 1

17. MEIOSIS II

19. Metaphase II Chromosomes align at metaphase plate

22. Summary

24. DIFFERENCES Criteria Mitosis Meiosis Type of cells Occurs in somatic cells Occurs in reproductive cells Number of division Consists of only one nuclear division Consists of two nuclear division M-I and M-II Product/ Chromosome number 2 diploid daughter cells 4 haploid daughter cells Cytokinesis Occurs only once – Telophase Occurs twice -Telophase I and II Pairing of homologues Yes No Crossing over Does not occur Mixing of chromosomes during prophase I Function Helps in growth and body repairs Helps in the sexual reproduction and regulation of chromosome number in the life cycle of sexually reproducing organism.

25. Prophase Involves relatively few changes. Involves a series of changes in chromosomes distinguished into 5 substages. Metaphase Chromosomes arrange along the equator. Chromosomes arrange equally on either side of the equator in metaphase-I. Centromeres in Anaphase Each centromere splits into two. Centromeres do not split in metaphase-l. Centrome- res in Metaphase Orient towards the equator while chromatids orient towards poles. Orient towards poles while chromatids orient towards the equator in metaphase-I. Telophase Results in the formation of two daughter nuclei having the same no. of chromosomes as that of parent cell. Telophase-II results in the formation of two daughter nuclei, each having half the no. of chromosomes as that of parent cell. Cytokine- sis Follows immediately after karyokinesis. May or may not occur at the end of first karyokinesis.