How is DNA analyzed in a forensic lab?

DNA analysis in a forensic lab involves several steps. First, DNA is extracted from the evidence using specialized techniques. Then, the extracted DNA is amplified using PCR (Polymerase chain reaction) to generate enough DNA for analysis. Next, the DNA is analyzed using techniques such as capillary electrophoresis to determine the number of repeating units at specific loci. Finally, the DNA profile is compared to known individuals using databases to identify potential matches. This process helps forensic scientists accurately match DNA evidence to individuals involved in criminal investigations.