Chapter ll Cell proliferation and its regulation Significance I. For the growth and development of a multicellular organism, and for the generation of offspring 2. Produce new organisms in unicellular species 3. Renew the aging, apoptotic cells, and damaged tissue So, cell proliferation is one of the most important characters for life
Cell proliferation and its regulation Significance: 1. For the growth and development of a multicellular organism, and for the generation of offspring; 2. Produce new organisms in unicellular species; 3. Renew the aging, apoptotic cells, and damaged tissue; So, cell proliferation is one of the most important characters for life Chapter 11
If damaged seriously by UV, mouse will die within several days. /Direction of cell movement
If damaged seriously by UV, mouse will die within several days
1. The cell cycle A. Overview of the cell cycle The most basic function of the cell cycle is to duplicate accurately the vast amount of dNa in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells mitosis metaphase-to-anaphase transition interphase prophase prometaphase metaphaseanaphasetel cophase INTERPHASE DNA replicati
1. The cell cycle A. Overview of the cell cycle The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells
Cell cvcle phases: >Interphase: GI-S-G2 >M phase: Mitosis, Cytokinesis G:S Cel grows and DNA replication es out nomal and chromos metabolism; duplication 24 hours NTERPHASE
❖Cell cycle phases: ➢Interphase: G1 -S-G2 ➢M phase: Mitosis, Cytokinesis