3. DNA Replication
Replication is semi-conservative (one strand is old, one strand new)
Each strand serves as a template (or pattern) for the new strand

4. Origins of Replication
Where DNA Replication starts
Differs between organisms
Prokaryotes = 1 origin of replication
Eukaryotes = many different origins of replication

5. General Process of DNA Replication
Step 1:
DNA Helicase separates the DNA helix
Step 2:
DNA Polymerase III builds the new strand of DNA

7. Nitrogenous bases are located in the cytoplasm
They enter the nucleus through the pores in the nuclear membrane

10. Thymine is added accidentally.
DNA polymerase cuts the damaged DNA.
The proper base is added.
Ligase joins the two spots.

11. DNA Ligase
DNA Ligase
Forms covalent bonds between nucleotides to create a continuous strand of DNA
When DNA Polymerase I edits the DNA strand, DNA Ligase attaches the bases on one side of the DNA strand together.

13. DNA Replication Replicate the following DNA strand:
A – G – G – C – T – T – C – A – G – T
T – C – C – G – A – A – G – T – C - A