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Home Biotechnology Cell Cycle Comments

  • Question
  • At the __________ checkpoint, cell growth is controlled.


  • Options
  • A. C
  • B. G1
  • C. G2
  • D. S

  • Correct Answer
  • G1 


  • Cell Cycle problems


    Search Results


    • 1. In which of the following phase preparations for genome separation are made?

    • Options
    • A. C
    • B. G1
    • C. G2
    • D. M
    • Discuss
    • 2. Which phase of mitosis is associated with chromosomes aligned at the center of the cell and centromeres divide?

    • Options
    • A. anaphase
    • B. interphase
    • C. metaphase
    • D. prophase
    • Discuss
    • 3. How many chromatids does a diploid body cell contain just prior to cell division?

    • Options
    • A. 23
    • B. 46
    • C. 69
    • D. 92
    • Discuss
    • 4. Cells which no longer divide (such as certain specialized cells found in the human brain) remain in which phase of the cell cycle?

    • Options
    • A. Prophase
    • B. S phase
    • C. G0 Phase
    • D. Gl Phase
    • Discuss
    • 5. During which phase, a cleavage furrow is formed in animal cells?

    • Options
    • A. C
    • B. G1
    • C. G2
    • D. M
    • Discuss
    • 6. How many chromatids are there in a duplicated chromosome?

    • Options
    • A. One
    • B. Two
    • C. Three
    • D. Four
    • Discuss
    • 7. The centromeres move toward the poles in __________ .

    • Options
    • A. anaphase
    • B. interphase
    • C. metaphase
    • D. prophase
    • Discuss
    • 8. The cell cycle is controlled in most cells by

    • Options
    • A. time (after a certain length of time the cell divides)
    • B. a series of checkpoints
    • C. cell size (when the cell reaches a certain size, it divides)
    • D. different cells exhibit different control strategies
    • Discuss
    • 9. Which of the following statements about mitosis is incorrect?

    • Options
    • A. The daughter nuclei are genetically identical to the parent nucleus
    • B. Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other
    • C. Chromosomes separate during anaphase when the kinetochore microtubules shorten as they depolymerize
    • D. Chromosomes move to the metaphase plate using motor proteins, a kind of kinesin, attached to spindle fibers
    • Discuss
    • 10. Which phase of mitosis is associated with separation of chromatids?

    • Options
    • A. Prophase
    • B. Metaphase
    • C. Anaphase
    • D. Telophase
    • Discuss


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