1. Structure of DNA

2. DNA The nucleic acid that stores and transmits genetic information of a cell from one generation to the next Nucleic = in the nucleus!

3. DNA Made of building blocks called nucleotides Each DNA is made up of thousands of nucleotides. This is called a polymer.

4. Deoxyribose A 5-carbon sugar. Each corner = one carbon atom.

5. Nitrogenous Bases In DNA there are 4 nitrogenous bases – Adenine – Thymine – Cytosine – Guanine Always pair together

6. Example: If ½ a DNA molecule has the following bases, what are the complimentary bases for the other half of the molecule? ACGCTAGCG

7. Practice Question If ½ a DNA molecule has the following bases, what are the complimentary bases for the other half of the molecule? GCGTAAACTG