Molecular Biology Quiz
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Questions and Answers

What technique involves fixing DNA to a substrate and then hybridizing a DNA probe to the fixed DNA?

  • Southern Blot (correct)
  • Northern Blot
  • Microarray
  • Western Blot
  • Trp is best described as an ______ effector.

  • Allosteric (correct)
  • Irreversible
  • Non-competitive
  • Competitive
  • Which of the following is best described as a “cis-acting” element?

  • Enhancer element
  • Promoter element
  • Transcription factor
  • cAMP response element (CRE) (correct)
  • How many genes encode insulin?

    <p>One</p> Signup and view all the answers

    Which enzyme synthesizes three eukaryotic rRNAs?

    <p>RNA polymerase 1</p> Signup and view all the answers

    What natural cellular process requires reverse transcription?

    <p>Replication of chromosome ends</p> Signup and view all the answers

    What other method can be used to amplify the number of copies of a particular sequence?

    <p>Polymerase Chain reaction</p> Signup and view all the answers

    What is the function of Titin in muscle?

    <p>Acting as a molecular spring</p> Signup and view all the answers

    What is the main function of SDS and B-mercaptoethanol in protein treatment?

    <p>Separating protein subunits</p> Signup and view all the answers

    Which cellular process requires ligation?

    <p>Replication</p> Signup and view all the answers

    What is the effect of gastrin on stomach pH and of secretin on intestinal pH?

    <p>Gastrin decreases stomach pH and Secretin increases intestinal pH</p> Signup and view all the answers

    Which two amino acids can’t be used directly for Gluconeogenesis?

    <p>Leucine, Lysine</p> Signup and view all the answers

    Where else have you seen aspartate?

    <p>In a shuttle that transfers reducing equivalents from cytosol to mitochondria</p> Signup and view all the answers

    How is NADPH made and what is it also used for?

    <p>In the PPP; used for fatty acid synthesis and cholesterol synthesis</p> Signup and view all the answers

    Which of the following enzymes incorporates ammonia into a non-toxic amino acid for storage and circulatory transport?

    <p>Glutamine synthetase</p> Signup and view all the answers

    Which of these compounds always contain Nitrogen?

    <p>Amino Acids</p> Signup and view all the answers

    Which is an obligatory, allosteric activator of CPS1?

    <p>N-acetyl glutamate (NAG)</p> Signup and view all the answers

    A deficiency in catabolism of this monosaccharide causes a gain of function pathology:

    <p>Galactose</p> Signup and view all the answers

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