Application of polymerase chain reaction

find an article describing a use of the polymerase  chain reaction (10 points)

2. summerize the article in a 1-page (maximum) typed report, including: (40 points)

– who did the PCR? I.e medical group, research group, etc

describe what was the overall purpose of the PCR. for example:

were they trying to find out if a certain DNA existed in a sample?

were they trying to quantify the amount of DNA in one sample to another?

were they trying to mpdify / mutate a known DNA sequence?