Question 1
Before replication initiation occurs, the supercoiled chromosome is relaxed by:
◦ topoisomerases.
◦ helicases.
◦ endonucleases.
◦ exonucleases.
◦ single-stranded DNA binding proteins.
Question 2
In eukaryotic cells, which DNA polymerase elongates the leading strand of the nuclear genome?
◦ DNA polymerase α
◦ DNA polymerase β
◦ DNA polymerase γ
◦ DNA polymerase δ
◦ DNA polymerase ε