Letter B is single stranded binding proteins
An imaginary wall or divider.
Good luck on your permit test!
i think its A but iam not sure..........
Answer:
Option A
Explanation:
Xeroderma pigmentosum arises as a result of the cell being unable to correct lesions induced by UV. This can be as a result of mutations in the enzymes which include XP A-E needed for correction of the lesions. Failure to correct these lesions leads to their accumulation and then damage to the cell.
