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Figure 12.0 Mitosis Homologous chromosomes Figure 12.4 The cell cycle Figure 12.3 Chromosome duplication and distribution during mitosis Objective: You will be able to draw the stages of mitotic cell division. Do Now: • Read through the figure on p. 246-247 • Pay attention to what is happening with the chromosomes. Figure 12.5 The stages of mitotic cell division in an animal cell: G2 phase; prophase; prometaphase Figure 12.5 The stages of mitotic cell division in an animal cell: metaphase; anaphase; telophase and cytokinesis. Figure 12.5x Mitosis Objective: You will be able to differentiate between cytokinesis in animal and plant cells. Do Now: • Read, “Cytokinesis”, on p. 248 • Differentiate between cytokinesis in plants and animal cells. Figure 12.8 Cytokinesis in animal and plant cells Figure 12.9 Mitosis in a plant cell Figure 12-09x Mitosis in an onion root Objective: You will be able to describe the various types of asexual reproduction. Do Now: • Read “Controls on Cell Division” on p. 250 • Why do cuts heal? Figure 12.13 Mechanical analogy for the cell cycle control system Objective: You will be able to explain how a cell can become cancerous. Do Now: • Read “Uncontrolled cell growth” on p. 252 • What do all types of cancer have in common. Proto-oncogene DNA Translocation or transposition: gene moved to new locus, under new controls Gene amplification: multiple copies of the gene New promoter Normal growth-stimulating protein in excess Normal growth-stimulating protein in excess Point mutation within a control element Point mutation within the gene Oncogene Oncogene Normal growth-stimulating protein in excess Hyperactive or degradationresistant protein Objective: You will be able to draw the stages of meiosis. Do Now: • Read “Chromosome number” on p. 275 • Differentiate between a cell that is diploid and on that is haploid. Chapter 13: Meiosis Figure 13.x5 Human male karyotype shown by bright field G-banding of chromosomes Figure 13.7 The stages of meiotic cell division: Meiosis I Figure 13.7 The stages of meiotic cell division: Meiosis II Figure 13.8 A comparison of mitosis and meiosis Figure 13.8 A comparison of mitosis and meiosis: summary Figure 13.10 The results of crossing over during meiosis