1. Warm Up
Analyze why A+ G = C+ T

2. Define the Following: Conservative traditional Replicate duplicate
Transcribe
Copy
Translate
To change from one form to another

3. Replication of DNA Semiconservative Replication
Parental strands are used as templates
produce DNA molecules that have:
one strand of parental DNA and one new strand of DNA.
New DNA with one Strand of Parent DNA and one new strand.
Template Strand of Parent DNA
Parent DNA

4. Replication of DNA
Explain Semiconservative Replication.

5. Three Stages Unwinding Base Pairing Joining Replication of DNA
Why would DNA need to unwind?
Recall the bases

6. Review
What is an enzyme?
Protein that speeds up biological reaction.

7. Replication of DNA Unwinding DNA helicase (an enzyme)
unwinds the DNA double helix.
Makes a single strand

8. Replication of DNA Base pairing
DNA polymerase ( an enzyme) adds nucleotides to the chain to the new DNA strand.
A-T
G-C

9. Base Pairing Practice
AACGTACGATCGATGCA
TTGCATGCTAGCTACGT

10. Leading Strand
Built continuously
Lagging Strand
Built discontinuously
Okazaki Fragments
Fragments are connected by DNA ligase(enzyme)

11. DNA ligase links the two sections.
Replication of DNA
Joining
DNA ligase links the two sections.

12. Eukaryotes VS. Prokaryotes
DNA Replication
Eukaryotes VS. Prokaryotes
Eukaryotic DNA unwinds in multiple areas as DNA is replicated.
In prokaryotes, the circular DNA strand is opened at one origin of replication.

13. Quiz
Indicate the sequence of the template strand if a nontemplate strand has the sequence ’ATGGGGCGC 3’
Describe the process of DNA Replication.