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Which type of DNA repair mechanism is used to fix thymine dimers caused by UV li

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Question: Which type of DNA repair mechanism is used to fix thymine dimers caused by UV light?

Options:

  1. Base excision repair
  2. Nucleotide excision repair
  3. Mismatch repair
  4. Homologous recombination

Correct Answer: Nucleotide excision repair

Solution: 

Nucleotide excision repair is the mechanism that removes thymine dimers caused by UV light.

Which type of DNA repair mechanism is used to fix thymine dimers caused by UV li

Practice Questions

Q1
Which type of DNA repair mechanism is used to fix thymine dimers caused by UV light?
  1. Base excision repair
  2. Nucleotide excision repair
  3. Mismatch repair
  4. Homologous recombination

Questions & Step-by-Step Solutions

Which type of DNA repair mechanism is used to fix thymine dimers caused by UV light?
  • Step 1: Understand that thymine dimers are a type of DNA damage caused by UV light.
  • Step 2: Learn that DNA has repair mechanisms to fix damage.
  • Step 3: Identify that nucleotide excision repair is one of these mechanisms.
  • Step 4: Know that nucleotide excision repair works by removing the damaged section of DNA, including thymine dimers.
  • Step 5: Realize that after removal, the DNA is then correctly repaired and reconnected.
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