The “Central Dogma" of Biology(DNA Replication and Protein Synthesis)
Concept 1: Analyzing the events of the cell cycle
Campbell: Ch 12Lab Handout
Concept 1: Analyzing the events of the cell cycleYou must know:The purpose of cell division
The structure of the replicated chromosome
The stages of the cell cycle and mitosis
Try These!What IS a cell?Why does a cell need to divide?What IS DNA?Why does DNA have to replicate?
Cell Division
The structure of the replicated chromosomeExplain the difference between
the following terms:◦sister chromatids◦homologous chromosomes
The stages of the Cell CycleAt the end of the cell cycle, the
daughter cells will have _______ amount of DNA as the parent cell in G1
The stages of the Cell CycleAt the end of the cell cycle, the
daughter cells will have _______ amount of DNA as the parent cell in G1
THE SAME
The stages of the Cell CycleAt 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)
Control of Cell Cycle... checkpoints!
If the cell does not “pass” the G1 checkpoint, it will not divide = G0 phase
Control of Cell Cycle... checkpoints!Cells that cannot control their
cycles grow/divide uncontrollably...tumors/cancer
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
The Stages of MitosisHow is the metaphase stage of
mitosis different from the metaphase stage of meiosis 1?
Single-File!
Next Class...Zooming into DNA structure...
What does it look like? (Ch 16)
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