1. DNA Analysis

2. Deoxyribonucleic Acid (DNA) – in all cells
- found in blood, semen, saliva, tissues, hair, bones
Double helix made of repeating nucleotides
Nucleotide = sugar, phosphate, base
4 bases – A, T, C, G
Unique to individual based upon base pairings

3. DNA fingerprint – DNA pattern that distinguishes one individual from another
Gel Electrophoresis – produces DNA fingerprint
- segments of DNA are separated by size through a gel (stationary phase) by an electric current (mobile phase)

4. Gel electrophoresis