1. DNA’s Functions:
Stores ____________ information to build and maintain a living organism
_______ ___________

2. James Watson & Francis Crick 1953
Determined the _________ ___________ structure of _____
One of the greatest discoveries in the history of science
Nobel prize in ____________

3. _____ _______ _______ ______ ______.
That means that you have something in common with a zebra, a tree, a mushroom and a beetle!!!!

4. DNA Molecule
Within cells, DNA is organized into structures called ___________________.
These chromosomes are duplicated before cells divide, in a process called DNA __________________.

5. Genes
Each chromosome contains ______ to _______ of information blocks called _______
Each gene is the ___________ for a specific protein in the body
- may tell our body what color our eyes are supposed to be, dozens of proteins are responsible for synthesis of ATP, digesting food, etc, etc etc

6. DNA stands for: D: _________ N: _________ A: _________
DNA is ________to see, but under a microscope it looks like a twisted up _________!

7. Deciphering DNA's structure.
DNA is made up of subunits which scientists called ___________________.
Each nucleotide is made up of a __________, a ____________ and a ______________.

8. DNA is made up of steps and rails of a ladder.
This is a rail
This is a step

9. DNA Bases
Each nucleotide is made up of a sugar, a phosphate and a base.
There are 4 different bases in a DNA molecule:
____________ & ___________ ____________ & ___________
Adenine can only go with Thymine
Guanine can only go with Cytosine

10. Deciphering DNA's structure.
4. The number of purine bases equals the number of pyrimidine bases 5. The number of adenine bases equals the number of thymine bases 6. The number of guanine bases equals the number of cytosine bases 7. The basic structure of the DNA molecule is helical, with the bases being stacked on top of each other

11. DNA is like a fingerprint because everyone’s is a little different!
You can tell people apart by their fingerprints………
and their DNA!
How would the police look at DNA to figure out who committed a crime?