DNA Mismatch Repair: Correcting Errors That Happen During DNA Replication


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Why are methyl (CH3) groups important in mismatch repair?

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1. What kind of DNA damage is repaired using Mismatch Repair?

2. How does the mismatch repair machinery recognize an error in DNA?

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About This Quiz & Worksheet

Focusing on what happens when errors are present within the cell, this quiz and corresponding worksheet will help you gauge your knowledge of mismatch repair in DNA replication. Topics you'll need to know to pass the quiz include understanding the role of methyl groups in mismatch repair as well as what kind of DNA damage is repaired.

Quiz & Worksheet Goals

Use this printable worksheet and quiz to review:

  • Role of methyl groups
  • Type of DNA damage that gets repaired
  • How an error in DNA gets recognized
  • Comparison between parental and new DNA strands
  • Effects of defective genes

Skills Practiced

This worksheet and quiz will let you practice the following skills:

  • Distinguishing Differences - compare and contrast topics from the lesson, such as parental strands and new strands of DNA
  • Interpreting information - verify you can read information regarding the effects of defective genes and interpret it correctly
  • Knowledge application - use your knowledge to answer questions about how an error in DNA gets recognized

Additional Learning

To learn more about the importance of keeping data correct in our organic machines, review the corresponding lesson DNA Mismatch Repair: Correcting Errors That Happen During DNA Replication. This lesson will help you:

  • Define what mismatch repair is
  • Understand the importance of mismatch repair in the body
  • Identify the inner machinery responsible for mismatch repair
  • Appreciate how the methyl groups recognize the parental strand
  • Describe the harms that can result from errors in the gene code