Lab Report 9 Mitosis Lab Report

I. Mitosis in Eukaryotes • Where does mitosis occur? Mitosis occurs in the eukaryotic cells. It is the process by which cells divide to form new cells. The process of mitosis actually produces two daughter cells that are completely indistinguishable from the parent cell. • Where do eukaryotic cells inherit their homologous chromosomes? One homologous chromosome is inherited from the male parent and the other is inherited from the female parent. II. Cell Cycle EXERCISE 1 – Identify the stages of the cell cycle Identify the stages of the cell cycle and list the major events of each stage. Stage Major events Cytoplasmic growth, organelle development, G1 and metabolism occur. Interphase S Chromosome replication occurs. Construction of the spindle apparatus and initial G2 condensing of the chromosome occur. Mitosis Chromatin condenses into chromosomes. Centrioles move to opposite sides of the cytoplasm. Nuclear membrane and nucleolus Prophase disperse. Microtubules assemble and associate with centrioles and chromatids of chromosomes. Spindle fibers from the centrioles attach to the centromeres of each chromosome. Metaphase Chromosomes align midway between the centrioles. Centromeres separate, and chromatids of the chromosomes separate. Spindle fibers shorten Anaphase and pull these new individual chromosomes toward centrioles.Cytokinesis begins. Telophase Chromosomes elongate and form chromatin