- 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 1 :: History and Development of Forensic DNA Analysis
ABO Typing
Discovered in 1901 by Karl Landsteiner, the ABO system and its subsequent introduction into forensic science was just as remarkable in its day as DNA typing is today.
Although the ABO system was used to differentiate individuals, it did not have a high degree of discriminating power. Of the four possible groups—A, B, AB, and O—approximately 45% of the population has type O blood.
