1.6 Cell Division

1.6 Cell Division

1. Nature of Science

   • The discovery of cyclins was accidental
     • Involved in the control of the cell cycle

2. Phases

   • Identification of phases with microscopes or micrographs
     • Interphase
       • Phase G1
       • Phase S
         • DNA replication
           • Sister chromatids versus Chromosomes
       • Phase G2
     • Mitosis
       • Prophase
       • Metaphase
       • Anaphase
       • Telophase
     • Cytokinesis

3. International-Mindedness

   • Biologists are researching into the causes and treatment of cancer
     • Primary and Secondary tumours
       • Mutagens
       • Oncogenes
       • Metastasis
       • Correlation between smoking and incidence of cancers
     • Mitotic index
       • Predicting the response of cancer cells to chemotherapy

4. TOK

   • Scientific discoveries be the results of intuition rather than luck?