1. DNA Replication
Learning Goal 1

2. Base Pairing Rule of base pairing: A always pairs with T
G always pairs with C
A  T
T  A
G  C
C  G

3. DNA Replication To replicate means to make an exact copy
DNA Replication is how your cells make exact copies of your DNA
Your cells cannot make a mistake
1% error would be fatal

4. Review What is the base pairing rule? What does replication mean?
What is DNA replication

5. DNA Replication
Before your cells can make copies of your DNA, first they must unravel (unzip) your DNA strand

6. DNA Replication
After DNA unzips, the enzyme named DNA polymerase builds 2 new strands and attaches them to the separated old strands
DNA polymerase uses the base pairing rule.
Each new DNA is ½ old and ½ new (semi-conservative)

7. Review
What is the first thing that needs to happen before DNA is copied?
What is the enzyme that copies DNA?
What rule does the enzyme use?
What does semi-conservative mean?

8. Replication example & video