Question

Which of the following processes is used to separate a collection of different size DNA fragments?0000gel electrophoresispolymerase chain reactiontransformationrecombinant DNA

Answer 1

Answer: Gel Electrophoresis

Step-by-step explanation:

Gel electrophoresis,specifically agarose gel electrophoresis, runs DNA through a gel matrix towards a positive electrode because DNA is negatively charged. The larger the DNA molecule is the slower it will move through the gel, thus separating DNA by its size.

Polymerase Chain Reaction (PCR) is a technique used to amplify (replicate) a DNA segment many times over using DNA polymerase.

Transformation of Recombinant DNA is referring to inserting DNA into a cell. This can be done with numerous methods such as heat shock and electroporation.

Answer 2

Gel electrophoresis is a method useful to separate DNA fragments according to molecular size. Thus, the answer is gel electrophoresis.