A small amount of DNA is collected from a crime scene.However,the amount of DNA collected is insufficient to perform the necessary experiments to link a suspect to the crime.Which method could be utilized to increase the amount of DNA?
A)microarray analysis
B)gel electrophoresis
C)polymerase chain reaction (PCR)
D)fluorescent labeling of DNA
E)DNA sequencing

Question

Quizplus · Accepted Answer

Polymerase chain reaction (PCR) is the best choice as it can amplify a small amount of DNA into billions of copies. This will increase the amount of DNA available for further experiments and analysis. Microarray analysis, gel electrophoresis, fluorescent labeling of DNA, and DNA sequencing are not designed to amplify small quantities of DNA.

A Small Amount of DNA Is Collected from a Crime