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Interphase quiz #3 Flashcards

Interphase quiz #3
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  • What happens in the S phase of interphase?
    In the S phase, DNA synthesis occurs, resulting in replicated chromosomes and centrosomes.
  • Why is interphase the longest stage of the cell cycle?
    Interphase is the longest stage because it involves cell growth, DNA replication, and preparation for mitosis, which are time-consuming processes.
  • Which of the following phases in the cell cycle is considered a resting phase? A) G0 B) G1 C) S D) G2
    A) G0
  • What are the main subphases of interphase, and what key events occur in each?
    The main subphases of interphase are G1 (cell growth and normal functions), S (DNA and centrosome replication), and G2 (continued growth and preparation for mitosis).
  • Describe the role of the centrosome during the cell cycle.
    The centrosome is replicated during the S phase and later organizes the mitotic spindle, which is essential for separating chromosomes during mitosis.
  • Why is interphase considered the longest phase of the cell cycle?
    Interphase is the longest phase because it involves extensive cell growth, DNA replication, and preparation for division, all of which take more time than the relatively quick process of mitosis.
  • What is the function of the mitotic spindle, and how is it related to events in interphase?
    The mitotic spindle, organized by the centrosomes replicated during S phase, is responsible for separating chromosomes during mitosis.