Reversing DNA Damage Caused by Mutagens and Irradiation

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

The enzyme photolyase is used in what method of repair and why?

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1. An apyrimidinic or apurinic (AP) site forms in which type of DNA repair?

2. Nucleotide excision repair recognises which type of faults in DNA?

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About This Quiz & Worksheet

This quiz and accompanying worksheet assess your ability to distinguish between the three types of DNA repair mechanisms. Practice questions also assess your ability to define base pairs and nucleotides.

Quiz & Worksheet Goals

Use this quiz to test your knowledge of:

  • Differences between the three methods of repairing DNA damage
  • Function of photolyase
  • Definition of apyrimidinic or apurinic site

Skills Practiced

This assessment will help you practice the following skills:

  • Making connections - use the concept of mutagen
  • Distinguishing differences - compare and contrast base and nucleotide
  • Knowledge application - use your knowledge to answer questions about DNA damage repair

Additional Learning

Learn more about repairing DNA damage in the lesson Reversing DNA Damage Caused by Mutagens and Irradiation. Objectives covered include:

  • Define DNA damage
  • Explain base excision repair
  • Understand the term photoreactivation
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