Cell Biology Lectures 6-10 MCQ

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1. What is the theory of the evolution of the nucleus?

  • Invagination of DNA-containing membrane
  • Invagination of pore-filled membrane
  • Combination of anaerobic pre-eukaryotic cell and an aeorbic prokaryote
  • Combination of an early eukaryotic cell and a DNA plasmid
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2. What is LHON?

  • Defects in the mitochondrial genome inherited from mother
  • Inherited vision loss due to death of cells in optic nerve
  • Progressive loss of mental and movement abilities
  • Weakness or paralysis of the eye muscles that impairs eye movement

3. Which of the following is NOT a role of the peroxisomes?

  • Digest excess or worn out organelles
  • Contain oxidative enzymes
  • Detoxification
  • Removing hydrogen atoms from organic compounds

4. Which of the following is NOT present in the nucleoplasm?

  • Nucleoporins
  • DNA and RNA
  • Enzymes
  • Nucleotides

5. What is Chromatin?

  • Irregularly shaped region packages all prokaryotic DNA
  • Tightly packaged DNA around nucleosomes
  • Loosely packaged DNA of non-dividing cells around histones
  • Alkaline protein that packages and orders the DNA

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