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

question 34

Multiple Choice

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?

• A)Sequence-specific primers to the suspect's DNA will be used for PCR amplification.
• B)Sequence-specific primers to the suspect's DNA will be added following PCR amplification.
• C)PCR will be used to make sequence-specific primers that are complementary to the suspect's DNA.
• D)Since multiple people touched the doorknob without gloves,it is impossible to use PCR to distinguish the suspect's DNA.

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