mRNA Editing and Apoprotein B
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Questions and Answers

What is mRNA editing?

  • A change in the ribosome sequence
  • A change in the DNA sequence
  • A change in the mRNA sequence (correct)
  • A change in the protein sequence

    • What is Apo B?

  • A type of RNA
  • A type of DNA
  • A type of lipid
  • An essential protein component of chylomicrons and VLDL (correct)

    • Where is Apo B mRNA made?

  • In the liver and the small intestine (correct)
  • In the stomach and the small intestine
  • In the liver and the pancreas
  • In the pancreas and the small intestine

    • What are the two variations of Apo B?

    <p>Apo B 48 and Apo B100</p> Signup and view all the answers

    Why is there a difference in the length and sequence of Apo B in the intestine compared to the liver?

    <p>Because mRNA editing occurs in the intestine</p> Signup and view all the answers

    What was the mutation that occurred in the gene sequence of Apo B in the intestine?

    <p>A change from CAA (glutamine) to a UAA (stop codon)</p> Signup and view all the answers

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