Reacción en cadena de la polimerasa (PCR) | Video HHMI BioInteractive

What happens to the DNA double helix during the initial heating phase of PCR?

• It forms a triple helix.

• It separates into individual single strands.

• It binds with primers.

• It undergoes replication.

What is the primary function of primers in the Polymerase Chain Reaction (PCR)?

• To denature the DNA double helix.

• To add nucleotides to the growing DNA strand.

• To define the specific DNA sequence that will be copied.

• To increase the temperature of the reaction.

Which enzyme is responsible for synthesizing new DNA strands by adding nucleotides during PCR?

• DNA ligase

• Helicase

• Taq polymerase

• RNA primase

Approximately how many copies of the target DNA sequence can be generated after 30 cycles of PCR?

• Thousands

• Millions

• Billions

• Hundreds