Molecular Biology: Point Mutations
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Questions and Answers

What is the effect of a nucleotide-pair substitution on the protein synthesized?

  • It only leads to a silent mutation.
  • It always results in a stop codon.
  • It can result in a missense mutation. (correct)
  • It never affects the resulting protein.

    • What is the consequence of an insertion or deletion of nucleotide pairs in a gene?

  • It only leads to a missense mutation.
  • It usually has a disastrous effect on the resulting protein. (correct)
  • It always leads to a silent mutation.
  • It never affects the reading frame.

    • What type of mutation occurs when a nucleotide pair is substituted with another pair?

  • Point mutation (correct)
  • Insertion
  • Frameshift mutation
  • Deletion

    • What happens when a nucleotide pair is substituted with another pair in a DNA template strand?

    <p>It can result in a missense mutation.</p> Signup and view all the answers

    What is the effect of a nucleotide-pair substitution on the mRNA sequence?

    <p>It can result in a silent mutation.</p> Signup and view all the answers

    What type of mutation is caused by the insertion or deletion of nucleotide pairs?

    <p>Frameshift mutation</p> Signup and view all the answers

    What is the consequence of a frameshift mutation?

    <p>It usually has a disastrous effect on the resulting protein.</p> Signup and view all the answers

    What is the result of a point mutation in a DNA template strand?

    <p>It can result in a missense mutation.</p> Signup and view all the answers

    What type of mutation is caused by a nucleotide-pair substitution?

    <p>Point mutation</p> Signup and view all the answers

    What is the effect of a silent mutation on the resulting protein?

    <p>It never affects the resulting protein.</p> Signup and view all the answers

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