Question 1
In humans, xeroderma pigmentosum is caused by mutations in genes for:
◦ mismatch repair.
◦ base excision repair.
◦ nucleotide excision repair.
◦ recombination repair.
◦ nonhomologous end joining.
Question 2
In mammals, the DNA polymerase involved in the short-patch DNA repair pathway is:
◦ DNA polymerase alpha.
◦ DNA polymerase beta.
◦ DNA polymerase gamma.
◦ DNA polymerase delta.
◦ DNA polymerase epsilon.