Question 1
Umu proteins are involved in which of the following DNA repair systems?
◦ error-prone DNA synthesis.
◦ recombination repair.
◦ mismatch repair.
◦ excision repair.
◦ photoreactivation.
Question 2
Which of the following types of DNA damage causes the least structural distortion to the DNA?
◦ Depurination
◦ Deamination
◦ Thymine dimerization
◦ Methylation
◦ Purine-purine mismatch