Multiple choice

Which of the following types of DNA replication or repair systems is dysfunctional in individuals with xeroderma pigmentosum?

  1. Base excision repair

  2. Mismatch repair

  3. Nucleotide excision repair

  4. Direct DNA damage

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Base excision repair, involved in removal of thymidine dimers, is defective in individuals with xeroderma pigmentosum.