Chromosome Mutations and Transitions vs. Transversions
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Questions and Answers

Which type of mutation involves the addition or removal of nucleotide pairs?

  • Aneuploidy
  • Insertions and Deletions (correct)
  • Polyploidy
  • Transversion

    • What type of mutation results in changes in the reading frame of the gene?

  • Transitions
  • Insertions and Deletions (correct)
  • Transversions
  • Aneuploidy

    • Which type of chromosome mutation involves the alteration of the structure of chromosomes?

  • Chromosome rearrangements (correct)
  • Aneuploidy
  • Transversion
  • Polyploidy

    • What type of genetic mutation occurs when the number of nucleotides inserted or deleted is not a multiple of three?

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

    What is the role of IF-3 in prokaryotic initiation?

    <p>Preventing the large ribosomal subunit from binding during initiation</p> Signup and view all the answers

    What function does the Shine–Dalgarno sequence serve in prokaryotic translation?

    <p>Allows the ribosome to attach to the mRNA and position it over the initiation codon</p> Signup and view all the answers

    What is the role of the cap at the 5′ end of eukaryotic mRNA in translation initiation?

    <p>Playing a critical role in the initiation of translation</p> Signup and view all the answers

    What is the function of the initiator tRNA in eukaryotic initiation complex?

    <p>Forming an initiation complex with the small subunit of eukaryotic ribosome</p> Signup and view all the answers

    What is the result of frameshift mutations on the encoded amino acids?

    <p>They alter all amino acids following the mutation</p> Signup and view all the answers

    What are in-frame insertions and deletions?

    <p>Mutations that do not affect the reading frame</p> Signup and view all the answers

    What is the characteristic of repetitive sequences involved in trinucleotide repeat expansions?

    <p>They consist of three nucleotides repeated in tandem</p> Signup and view all the answers

    How does the number of nucleotide repeats in expanding nucleotide repeats relate to disease severity?

    <p>It often correlates with disease severity</p> Signup and view all the answers

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