Understanding DNA Structure and Function Quiz

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Questions and Answers

What is the role of the nucleus in a cell?

  • Controlling cellular activities (correct)
  • Transferring materials between nucleoplasm and cytoplasm
  • Enclosing the liquid ground substance
  • Synthesizing ribosomal RNA

Which cellular component encloses the nucleoplasm and separates the nucleus from the cytoplasm?

  • Ribosomal RNA
  • Nuclear membrane (correct)
  • Chromosomes
  • Nucleolus

What are chromosomes mainly composed of?

  • Deoxyribonucleic Acid (DNA) (correct)
  • Proteins
  • Chromatin materials
  • Ribosomal RNA

What is the visible form of entangled chromatin material called?

<p>Genes (B)</p>
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During which stage does the Nucleolus disappear and reappear?

<p>Cell division stages (C)</p>
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What is the function of the Nucleolus in a cell?

<p>Synthesizing ribosomal RNA (B)</p>
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What is the purpose of putting a drop of methylene blue solution on the cell material?

<p>To color the material for easier observation under the microscope (A)</p>
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Which structure is described as the 'brain of the cell' in the text?

<p>Nucleus (C)</p>
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What type of cells contain an undefined nuclear region called a nucleoid?

<p>Prokaryotic cells (B)</p>
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What is the function of the nucleus in a cell?

<p>Controlling all the activities of the cell (C)</p>
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What is central to cellular reproduction according to the text?

<p>Cell nucleus (D)</p>
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Which statement best describes the role of the cover-slip in preparing a slide for observation under the microscope?

<p>To prevent air bubbles from forming on the slide (B)</p>
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