
 
   
   Module 4 :: Intro To the Lab
     
Topic 1 :: History and Development of Forensic DNA Analysis
   
	 
	DNA Typing—DQα (DQA1)/ Polymarker
 
        The first forensic application of PCR used the HLA DQ-alpha (DQA1) system which was expanded to include additional genetic systems called 
 Polymarker™ (PM). 
        Although 
 DQa/Polymarker
 was faster and more sensitive than RFLP, results were less discriminating. For example, matching profiles might be found in one in several thousand people. In RLFP, the match could be one in several million.