Xeroderma Pigmentosum: Mutations and DNA Repair
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Questions and Answers

What is the purpose of replica plating in mutation detection?

  • To screen for mutant strains of a colony-forming microorganism (correct)
  • To isolate microorganisms with resistance to viruses
  • To detect targeted mutations using PCR
  • To identify conditional mutations

What is a common conditional mutation used in mutation detection?

  • Chemical resistance
  • Heat sensitivity (correct)
  • Cold sensitivity
  • Heat resistance

What is the purpose of incubating at different temperatures in conditional mutation detection?

  • To screen for conditional mutations (correct)
  • To identify resistant cells
  • To isolate microorganisms with heat resistance
  • To detect targeted mutations

How are microorganisms like E. coli and yeast screened for resistance to viruses?

<p>By screening for growth when wild-type cells will not (B)</p> Signup and view all the answers

What is the purpose of molecular screens in mutation detection?

<p>To detect targeted mutations (D)</p> Signup and view all the answers

What techniques are used in molecular screens for mutation detection?

<p>PCR, restriction enzyme analysis and DNA probing (C)</p> Signup and view all the answers

What is the advantage of using microorganisms like E. coli and yeast in mutation detection?

<p>They are easily screened for resistance to viruses, chemicals or drugs (A)</p> Signup and view all the answers

What is the purpose of isolating conditional mutations in mutation detection?

<p>To study genes that are usually lethal (A)</p> Signup and view all the answers

What is the advantage of using conditional mutations in mutation detection?

<p>They allow for the study of genes that are usually lethal (B)</p> Signup and view all the answers

What is the purpose of screening for mutant strains of a colony-forming microorganism?

<p>To select for further study (B)</p> Signup and view all the answers

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