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The “Central Dogma" of Biology

The “Central Dogma" of Biology. (DNA Replication and Protein Synthesis) Concept 1: Analyzing the events of the cell cycle Campbell: Ch 12 Lab Handout. Concept 1: Analyzing the events of the cell cycle. You must know: The purpose of cell division

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The “Central Dogma" of Biology

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  1. The “Central Dogma" of Biology (DNA Replication and Protein Synthesis) Concept 1: Analyzing the events of the cell cycle Campbell: Ch 12 Lab Handout

  2. Concept 1: Analyzing the events of the cell cycle You must know: • The purpose of cell division • The structure of the replicated chromosome • The stages of the cell cycle and mitosis

  3. Try These! • What IS a cell? • Why does a cell need to divide? • What IS DNA? • Why does DNA have to replicate? Cell Division

  4. The structure of the replicated chromosome Can you find the sister chromatids and the centromere?

  5. The structure of the replicated chromosome • Explain the difference between the following terms: • sister chromatids • homologous chromosomes

  6. The stages of the Cell Cycle Growth Growth

  7. The stages of the Cell Cycle • At the end of the cell cycle, the daughter cells will have _______ amount of DNA as the parent cell in G1

  8. The stages of the Cell Cycle • At the end of the cell cycle, the daughter cells will have _______ amount of DNA as the parent cell in G1 THE SAME

  9. The stages of the Cell Cycle • At the end of the cell cycle, the daughter cells will have _______ amount of DNA as the parent cell in G1 THE SAME Diploid Diploid (2n) (2n) or Haploid Haploid (n) (n)

  10. Control of Cell Cycle... checkpoints! If the cell does not “pass” the G1 checkpoint, it will not divide = G0 phase

  11. Control of Cell Cycle... checkpoints! • Cells that cannot control their cycles grow/divide uncontrollably... tumors/cancer

  12. Control of Cell Cycle... checkpoints! • Vocabulary: G1/G2/M phase checkpoints, G1/S/G2/M/G0 phase, density-dependent inhibition, anchorage dependency, transformation, tumor, benign tumor, malignant tumor, metastasis

  13. The Stages of Mitosis Bioflix! animal cells: cleavage furrow plant cells: cell plate

  14. The Stages of Mitosis • How is the metaphase stage of mitosis different from the metaphase stage of meiosis 1? Single-File!

  15. Let’s look at some cells! • Can you find the different stages of mitosis?

  16. Lab  Finish all diagrams, questions, and calculations for next class (pg 29-34)

  17. Next Class... • Zooming into DNA structure... What does it look like? (Ch 16)

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