1. Do now activity #1 What is the monomer of DNA?
What is the function of DNA?
Where is DNA stored?
What stage of interphase is DNA replicated?
Why must DNA be replicated before mitosis?
Why is it important to check the cell before mitosis? What stage of interphase is that?

2. Section 2-1: DNA Structure
Essential Question
There are 4 types of DNA monomers. Describe all possible types of DNA monomers (what are the similarities & differences between the monomers?).
Section 2-1: DNA Structure
Learning Targets
Explain how the structure of DNA determines the structure of proteins.

3. announcements Section 1 Retake (>70%)
Completed stamp sheet assignments
Retake score will be permanent
Starts Monday, September 24, 2018
Class website will be updated today
Refer to stamp sheet for list of assignments
Quiz 1 scheduled for: Friday, 9/21/18
Quiz 2 scheduled for: Friday, 9/28/18
Section 2 Test scheduled for: Friday, 10/5/18
Last Day to Stamp Chapter 5: Thursday, 10/4/18

4. Available Extra Credit
announcements
Available Extra Credit OR
Tissue/Pencil Box = 5 Point Class Pass (Limit 2 per student per chapter)

5. Don’t forget to chunk your notes!

6. DNA is like a set of instructions.
overview
cyclins
DNA is like a set of instructions.

7. Some people think of DNA as map of directions.
overview
cyclins
Some people think of DNA as map of directions.

8. And others think DNA is like a recipe.
overview
cyclins
And others think DNA is like a recipe.

9. Function of DNA: Stores genetic __________ .
overview
cyclins
information
Function of DNA: Stores genetic __________ .

10. Don’t forget to chunk your notes!

11. DNA Structure: Double helix made of nucleotides.
cyclins

12. Each nucleotide is made of 3 parts.
DNA Structure
Each nucleotide is made of 3 parts.
cyclins

13. DNA Structure
1. Deoxyribose
cyclins

14. DNA Structure
1. Deoxyribose 2. Phosphate
cyclins

15. DNA Structure
Deoxyribose
Phosphate
3. Base
cyclins

16. What are all the parts of a nucleotide?
Question #1
What are all the parts of a nucleotide?

17. Question #1: answer
Deoxyribose
Phosphate
3. Base
cyclins

18. Don’t forget to chunk your notes!

19. Base pairs
Describe what you see.
cyclins

20. Base pairs
Describe what you see.
cyclins

21. Base pairs
cyclins

22. Base pairs Purines Pyrimidines Adenine Thymine Guanine Cytosine
hydrogen bonds
cyclins

23. Purines attach to pyrimidines
Base pairs
Purines attach to pyrimidines
cyclins

24. Adenine attaches to ______ .
Base pairs
Adenine attaches to ______ .
Thymine
cyclins

25. Base pairs
________
attaches to Cytosine .
Guanine
cyclins

26. According to the picture, which part of the monomer can change?
Question #2
According to the picture, which part of the monomer can change? A C B

28. Don’t forget to chunk your notes!

29. Double helix
DNA is double stranded.
cyclins

30. The DNA strands are anti-parallel
Double helix
The DNA strands are anti-parallel
cyclins