Which of the following techniques is most commonly used to separate and analyze DNA by size?
A) PCR
B) Agarose gel electrophoresis
C) DNA microarray analysis
D) Hybridization
E) DNA libraries

Question

Quizplus · Accepted Answer

Agarose gel electrophoresis is the most commonly used technique to separate and analyze DNA by size. This technique involves running a sample of DNA through a gel matrix, which separates the fragments based on size. The smaller the fragment, the farther it travels through the gel. This technique is useful for many applications, including DNA fingerprinting and DNA sequencing. PCR amplifies specific regions of DNA, DNA microarray analysis involves the hybridization of DNA to a microarray, hybridization involves the binding of two complementary nucleic acid strands, and DNA libraries involve the storage of DNA samples in a collection.

Which of the Following Techniques Is Most Commonly Used to Separate