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What is the primary function of mismatch repair?

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Question: What is the primary function of mismatch repair?

Options:

  1. To repair single-strand breaks
  2. To correct base-pairing errors
  3. To remove damaged bases
  4. To fix double-strand breaks

Correct Answer: To correct base-pairing errors

Solution: 

Mismatch repair is responsible for correcting base-pairing errors that occur during DNA replication.

What is the primary function of mismatch repair?

Practice Questions

Q1
What is the primary function of mismatch repair?
  1. To repair single-strand breaks
  2. To correct base-pairing errors
  3. To remove damaged bases
  4. To fix double-strand breaks

Questions & Step-by-Step Solutions

What is the primary function of mismatch repair?
  • Step 1: Understand that DNA is made up of building blocks called bases.
  • Step 2: Know that during DNA replication, these bases need to pair correctly (A with T, and C with G).
  • Step 3: Realize that sometimes, mistakes happen and the wrong bases pair together.
  • Step 4: Mismatch repair is a process that identifies these incorrect base pairs.
  • Step 5: The mismatch repair system then removes the incorrect base and replaces it with the correct one.
  • Step 6: This helps ensure that the DNA is copied accurately, maintaining genetic information.
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