The Ultimate Cell Cycle Quiz

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Questions and Answers

What happens during S phase of interphase?

  • The cell grows physically larger and copies organelles
  • The cell separates its DNA during M phase
  • The cell synthesizes a complete copy of the DNA in its nucleus (correct)
  • The cell grows more, makes proteins and organelles, and begins to reorganize its contents in preparation for mitosis

What is the function of kinetochore?

  • To duplicate a microtubule-organizing structure in S phase
  • To help separate DNA during M phase (correct)
  • To synthesize a complete copy of DNA in S phase
  • To make proteins and organelles in G2 phase

What is the prefix 'inter-' in interphase referring to?

  • The reorganization of contents during G2 phase
  • The growth of the cell during G1 phase
  • The duplication of DNA during S phase
  • The fact that it takes place between one mitotic phase and the next (correct)

What is DNA?

<p>A molecule that contains the biological instructions that make each species unique (B)</p>
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What are centrioles?

<p>Paired organelles found in the cytoplasm (C)</p>
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Which of the following is a correct sequence of events in the cell cycle?

<p>Interphase, DNA replication, mitosis, cytokinesis (B)</p>
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During which phase of the cell cycle does the cell grow and make a copy of its DNA?

<p>Interphase (D)</p>
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What is the main difference between mitosis and meiosis?

<p>Mitosis results in two daughter cells with identical genetic material, while meiosis results in four daughter cells with unique genetic material (C)</p>
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What is the purpose of cytokinesis in the cell cycle?

<p>To physically split the cell into two daughter cells (D)</p>
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Why is the cell cycle considered a cycle rather than a linear pathway?

<p>Because the cell cycle involves several important tasks that must be completed in a predictable series of steps (B)</p>
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What is the function of the nuclear membrane in a eukaryotic cell?

<p>To separate the contents of the nucleus from the rest of the cell (D)</p>
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What is the role of kinetochores in cell division?

<p>To connect chromosomes to microtubules of the mitotic and meiotic spindles (C)</p>
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What is the function of the centromere during cell division?

<p>To help the cell divide up its DNA during division (A)</p>
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What are the four basic phases of mitosis?

<p>Prophase, metaphase, anaphase, and telophase (A)</p>
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What is the function of spindle fibers in a cell?

<p>To divide the genetic material in a cell (D)</p>
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What is the purpose of G1 phase in interphase?

<p>To grow physically larger and copy organelles (B)</p>
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What is the function of centrosomes in cell division?

<p>To help separate DNA during M phase (C)</p>
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What is a chromosome?

<p>A thread-like structure made of DNA (D)</p>
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What is a gene?

<p>The basic physical and functional unit of heredity (C)</p>
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What is the function of histone proteins?

<p>To wrap DNA around and form chromatic fibers (A)</p>
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What is the purpose of the cell cycle?

<p>To grow and divide the cell (B)</p>
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What are the two main stages of the cell cycle?

<p>Mitosis and meiosis (A)</p>
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What must a cell do in order to divide?

<p>Grow, copy its genetic material (DNA), and physically split into two daughter cells (A)</p>
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What is the purpose of interphase?

<p>To grow and make a copy of the cell's DNA (B)</p>
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Why is the cell cycle considered a cycle, rather than a linear pathway?

<p>Because at the end of each go-round, the two daughter cells can start the exact same process over again from the beginning (A)</p>
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What is the role of the nucleolus in a eukaryotic cell?

<p>It is a round body located inside the nucleus (A)</p>
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What is the function of spindle fibers in cell division?

<p>To divide the genetic material in a cell (A)</p>
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What is the function of kinetochores during cell division?

<p>To connect chromosomes to microtubules of the mitotic and meiotic spindles (B)</p>
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What is the function of the centromere during cell division?

<p>To help the cell divide up its DNA during division (B)</p>
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Which phase of mitosis comes after metaphase?

<p>Anaphase (B)</p>
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