Genetic Mutations Quiz
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Questions and Answers

Which type of mutation in the promoter region can inhibit total gene expression?

  • Insertion mutation
  • Silent mutation
  • Deletion mutation (correct)
  • Missense mutation

    • What is the result of a missense/deletion mutation in the promoter region?

  • Production of a nonfunctional protein
  • Inhibition of gene expression (correct)
  • No effect on gene expression
  • Overexpression of protein

    • What is the result of a frame shift mutation in the coding region?

  • Production of a nonfunctional protein (correct)
  • Overexpression of protein
  • Increased protein stability
  • No effect on protein production

    • What is the result of a missense mutation in the coding region?

    <p>Increased protein stability</p> Signup and view all the answers

    What is the cause of Xeroderma pigmentosum?

    <p>Defect in nucleotide excision repair system</p> Signup and view all the answers

    What are the symptoms of Xeroderma pigmentosum?

    <p>Photosensitivity and susceptibility to skin cancer</p> Signup and view all the answers

    What is the role of ATM protein in the cell?

    <p>Recognizes thymine dimers and repairs them</p> Signup and view all the answers

    What is the cause of Ataxia-telangiectasia?

    <p>Defect in homologous recombination repair system</p> Signup and view all the answers

    What is the role of the mismatch repair system in the cell?

    <p>Repairs DNA damage caused by mismatched bases</p> Signup and view all the answers

    What is the cause of Hereditary Nonpolyposis Colon Cancer (HNPCC)?

    <p>Defect in mismatch repair system</p> Signup and view all the answers

    Which type of mutation in the promoter region can inhibit total gene expression?

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

    What is the result of a missense/deletion mutation in the promoter region?

    <p>Inhibition of gene expression</p> Signup and view all the answers

    What is the result of a frame shift mutation in the coding region?

    <p>Production of a nonfunctional protein</p> Signup and view all the answers

    What is the result of a missense mutation in the coding region?

    <p>Increased protein stability</p> Signup and view all the answers

    What is the cause of Xeroderma pigmentosum?

    <p>Defect in nucleotide excision repair system</p> Signup and view all the answers

    What are the symptoms of Xeroderma pigmentosum?

    <p>Photosensitivity and susceptibility to skin cancer</p> Signup and view all the answers

    What is the role of ATM protein in the cell?

    <p>Recognizes thymine dimers and repairs them</p> Signup and view all the answers

    What is the cause of Ataxia-telangiectasia?

    <p>Defect in homologous recombination repair system</p> Signup and view all the answers

    What is the role of the mismatch repair system in the cell?

    <p>Repairs DNA damage caused by mismatched bases</p> Signup and view all the answers

    What is the cause of Hereditary Nonpolyposis Colon Cancer (HNPCC)?

    <p>Defect in mismatch repair system</p> Signup and view all the answers

    What is the result of a missense or deletion mutation in the promoter region of a gene?

    <p>Inhibition of total gene expression</p> Signup and view all the answers

    What is the result of a missense or deletion mutation in the coding region of a gene?

    <p>Production of altered protein</p> Signup and view all the answers

    What is the effect of a frame shift mutation in the coding region of a gene?

    <p>Affects translation and produces immature protein</p> Signup and view all the answers

    What is Xeroderma pigmentosum?

    <p>A rare autosomal recessive disorder</p> Signup and view all the answers

    What is Ataxia-telangiectasia?

    <p>A degenerative motor condition</p> Signup and view all the answers

    What causes Hereditary Nonpolyposis Colon Cancer (HNPCC)?

    <p>Mutations in the genes encoding for mismatch repair system</p> Signup and view all the answers

    What is the function of the ATM protein?

    <p>Recognizes depurination and deamination</p> Signup and view all the answers

    What is the result of a missense or deletion mutation in the promoter region of a gene?

    <p>Inhibition of total gene expression</p> Signup and view all the answers

    What is the result of a missense or deletion mutation in the coding region of a gene?

    <p>Production of altered protein</p> Signup and view all the answers

    What is the effect of a frame shift mutation in the coding region of a gene?

    <p>Affects translation and produces immature protein</p> Signup and view all the answers

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