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Cell Cycle: Significant Events and Phases
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Cell Cycle: Significant Events and Phases

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Questions and Answers

What event occurs during cytokinesis in the cell cycle?

  • Formation of spindle fibers
  • Disappearance of nucleolus
  • Distribution of organelles and macromolecules (correct)
  • Attachment of chromosomes into the spindle fibers
  • Which phase of the cell cycle involves the synthesis of proteins, lipids, and carbohydrates?

  • Quiet Phase (G0)
  • Gap 2 (G2)
  • Synthesis (S)
  • Gap 1 (G1) (correct)
  • What is the main function of the checkpoints in the cell cycle?

  • Halting protein synthesis
  • Preventing DNA synthesis
  • Promoting apoptosis
  • Ensuring chromosomes are properly replicated and distributed (correct)
  • Which event marks the beginning of mitosis proper in the cell cycle?

    <p>Coiling of DNA</p> Signup and view all the answers

    During which phase of the cell cycle does apoptosis occur?

    <p>Quiet Phase (G0)</p> Signup and view all the answers

    What is the role of cleavage furrow in cell division?

    <p>Separation of the two daughter cells</p> Signup and view all the answers

    What is the main function of the DNA Damage Checkpoint?

    <p>Temporarily pauses the cell cycle for DNA repair</p> Signup and view all the answers

    Which protein is involved in the Apoptosis Checkpoint?

    <p>Survivins</p> Signup and view all the answers

    What is the function of Telomerase in relation to telomeres?

    <p>Prevents telomere shortening</p> Signup and view all the answers

    Why do most cancer cells arise according to the text?

    <p>Mutation leading to improper protein production</p> Signup and view all the answers

    What is the role of Spindle Assembly Checkpoint in cell division?

    <p>Ensures chromosomes are properly attached to spindle fibers</p> Signup and view all the answers

    How does the Apoptosis Checkpoint affect cell fate?

    <p>Causes cells to undergo apoptosis if survivins message is not received</p> Signup and view all the answers

    What is the role of caspases in apoptosis?

    <p>Destroy enzymes that replicate or repair DNA</p> Signup and view all the answers

    Which process is responsible for dismantling cell remnants or blebs after apoptosis?

    <p>Cytokinesis</p> Signup and view all the answers

    What is the characteristic chromosome number of cells produced by Meiosis II?

    <p>23 chromosomes</p> Signup and view all the answers

    During which phase of Meiosis does synapsis occur?

    <p>Prophase</p> Signup and view all the answers

    What effect does apoptosis have on a cell's ability to adhere to other cells?

    <p>It abolishes the cell's activity to adhere to other cells</p> Signup and view all the answers

    What is the primary function of meiosis in cell division?

    <p>Producing gametes with unique genetic information</p> Signup and view all the answers

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