During the investigation of a convenience store robbery,witnesses report that the perpetrator exited through a main entry door without wearing gloves.The police are holding a prime suspect in custody while samples from the door are collected and analyzed for a DNA match.Since the door was handled by many people before the robbery,how will the forensics department distinguish the suspect's DNA from the DNA of others using PCR?

Question

Quizplus · Accepted Answer

Sequence-specific primers to the suspect's DNA will be used for PCR amplification. This will allow the forensics department to target and amplify specific regions of the suspect's DNA, which will distinguish their DNA from the DNA of others who may have touched the doorknob. By using primers specific to the suspect's DNA, the PCR process will only amplify their DNA and not the DNA of other individuals.

During the Investigation of a Convenience Store Robbery,witnesses Report That