A detective finds a miniscule spot of blood on a murder suspect's shirt.What method would the police lab be expected to use to get enough DNA from the blood droplet to perform DNA fingerprinting?

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Quizplus · Accepted Answer

Polymerase chain reaction (PCR) is the most commonly used method for amplifying DNA samples to obtain enough genetic material for DNA fingerprinting. PCR can amplify even minuscule amounts of DNA and produce enough for analysis. Inserting the sample's DNA into a plasmid, inserting the blood's DNA into viral DNA, and DNA sequencing are not commonly used methods for obtaining DNA for DNA fingerprinting.

A Detective Finds a Miniscule Spot of Blood on a Murder