Answer:
The correct answer is C. Polymerase chain reaction
Explanation:
The diagram shows the molecular biology technique Polymerase Chain Reaction (PCR), which is used to amplificate quantities of DNA. The technique uses the intrinsic ability of DNA polymerase, a enzyme which adds nucleotides to a short fragment of DNA- a primer- by using a single strand DNA as template. Furthermore, the often used DNA polymerase is from a thermofilic microorganisms, so the enzyme can catalyze the polimerization reaction at high temperatures- which is very useful to controlling the reaction. Through this technique, in each cycle of reaction the initial quantity of DNA is exponentially amplified.
