Cell Cycle and Mitosis Quiz

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Questions and Answers

Which phase of the cell cycle occurs after DNA replication in the S-phase?

  • G1 phase
  • G2 phase (correct)
  • M-phase
  • Metaphase

During which phase of mitosis do chromosomes condense and mitotic spindles assemble between the two centrosomes?

  • Prophase (correct)
  • Metaphase
  • Prometaphase
  • Anaphase

How many phases can mitosis be divided into?

  • 3
  • 2
  • 5 (correct)
  • 4

What are the end products of mitosis?

<p>Two identical daughter cells (C)</p> Signup and view all the answers

Which of the following is NOT a checkpoint in the cell cycle?

<p>G1 checkpoint (D)</p> Signup and view all the answers

What is the role of CKIs, RB, and p53 in cell cycle regulation?

<p>Inhibit cell division (A)</p> Signup and view all the answers

In the presence of growth factors, how is cell cycle regulation affected?

<p>Cell cycle is accelerated (D)</p> Signup and view all the answers

During which phase of the cell cycle do centrosomes undergo replication?

<p>G2 (C)</p> Signup and view all the answers

Which structure in the centrosome is surrounded by a cloud or amorphous material?

<p>Pericentriolar matrix (B)</p> Signup and view all the answers

What protein attaches chromosomes to spindle microtubules in prometaphase?

<p>Kinetochore (D)</p> Signup and view all the answers

During which phase of mitosis do chromatids synchronously separate?

<p>Anaphase (C)</p> Signup and view all the answers

What happens to kinetochore microtubules in anaphase?

<p>They get shorter (C)</p> Signup and view all the answers

What is the process by which the cytoplasm divides in two, forming two daughter cells?

<p>Cytokinesis (D)</p> Signup and view all the answers

What is the number of chromosomes in G1 of the cell cycle?

<p>2n (B)</p> Signup and view all the answers

What is the number of chromosomes in prophase?

<p>2n (B)</p> Signup and view all the answers

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