TLS Online TPP Program

#Question id: 3801


Why should patients with xeroderma pigmentosum avoid sunlight?

#Section 3: Genetics, Cellular and Molecular Biology
  1. The UV wavelengths do irreparable damage to DNA.

  2. Sunlight inhibits any residual DNA repair activity in the cell.

  3. These patients lack pigmentation to protect them from burning.

  4. Sunlight inhibits DNA polymerases.