The polymerase chain reaction

hi there,
Please just write about just the first 2 sections that I mentioned here from the report template doc. and I attached the manual of this practice as well.
1. Write a brief introduction (~2 referenced paragraphs) explaining the background theory of the experiment, concluding with a concise aim.
2. Write out the methods used for the experiment.

You can also get the answer to this paper securely, anonymously. The paper shall be original with an accompanying originality report.