1. 1._____________ 2. ____________ 3._____________ Bell warm up 01/07/10
A nucleotide consists of:
1._____________
2. ____________
3._____________

2. Importance of DNA Genetically engineered glowing tobacco plant
Genetically engineered glowing fish 2

3. DNA Replication

4. DNA = Deoxyribo nucleic acid
DNA Notes
DNA = Deoxyribo nucleic acid
Made up of repeating units called nucleotides.
A nucleotide consist of ( sugar (deoxyribose), phosphates and nitrogeneous bases

5. Cell division and DNA replication
Cells divide
Growth, Repair, Replacement
Before cells divide they have to double cell
structures, organelles and their genetic
information

6. Notes:
Structure was discovered in 1953 by James
Watson and Francis Crick

7. DNA replication

8. DNA Replication Steps DNA replication 1. DNA unwinding
2. Unzipping (hydrogen bonds break)
3. New strands made– free floating nucleotides form to build new strand
Note:
DNA replication is said to be Semi-conservative because:
One strand is the original (conserved)
One strand is freshly assembled (semi-half)
This shows dna replication animation
You will talk about each step as you click play

9. DNA replication steps
unzipping
DNA
New nucleotides
assembled

11. DNA replication
This shows dna replication animation
You will talk about each step as you click play

12. Let’s build our own DNA model and simulate DNA replication.
At this website, each student will replicate DNA. This will support the paper cut out replication activity

13. DNA replication DNA Double helix game
Reenforcement purpose. Extra activity if time permits
If you cannot link directly, go to at search write dna double helix game.

14. Replication Lab Make the other side to make a double helix
Pick A T C G C T (lay them on the table)
Make the other side to make a double helix
Now lets replicate:
3. UNWIND your DNA get teacher’s approval
4. UNZIP your DNA
Build new strands
Put the labels in the correct places
( DNA polymerase, new strand, old strand)

15. Lab 2 Create your own DNA with 6 rungs or steps REPLICATE
Show your teacher the end product with the lables in the correct places
Complete the given worksheet
Turn in your work as a group, clean up and go back to your seat in front