Question: What are the three main steps of the PCR cycle?

Options:

1. Denaturation, annealing, extension
2. Denaturation, transcription, translation
3. Annealing, elongation, termination
4. Denaturation, replication, repair

Correct Answer: Denaturation, annealing, extension

Solution:

The three main steps of PCR are denaturation, annealing, and extension.