- 01 Introduction
- 02 Biology of DNA
- 03 Practical Issues Specific to DNA Evidence
- 04 Introduction to the Forensic DNA Laboratory
- 05 Assuring Quality in DNA Testing
- 06 Understanding a Forensic DNA Lab Report
- 07 Statistics and Population Genetics
- 08 Mitochondrial DNA & Y-STR Analysis
- 09 Forensic DNA Databases
- 10 Collection of DNA Evidence from Suspects and Arrestees
- 11 Pretrial DNA Evidence Issues
- 12 Victim Issues
- 13 Trial Presentation
- 14 Postconviction DNA Cases
- 15 Emerging Trends
Principles of Forensic DNA
for Officers of the Court
for Officers of the Court
Module 4 :: Intro To the Lab
Topic 2 :: Laboratory Processes Used in Forensic DNA Analysis
DNA Separation
For genotyping to occur, the extracted and now amplified DNA must be separated so that alleles can be differentiated from each other. There are two primary methods used for DNA separation: slab gel electrophoresis and capillary electrophoresis (CE) These techniques produce identical results in a variety of visual formats.
The electrophoresis process uses an electric field to separate negatively charged DNA based upon the size of the amplified fragments.
