steps in DNA replication 2

Question 1

4. next single-stranded binding proteins (SSBs) bind to these

Answer 1

exposed regions and prevent them from re-annealing to one another

Question 2

5. an RNA primer is synthesized against the template ssDNA by

Answer 2

primase

Question 3

6. extension of DNA or polymerization (adding onto the 3’ end) is performed by

Answer 3

DNA polymerase 2
occurs continuously on
the leading strand

occurs discontinuously
on the lagging strand,
creating Okazaki
fragments

 new primers have to 
be added as the fork 
moves and exposes 
new DNA ahead of the primer