Answer:
a hypothesis. ... A theory is a group of hypotheses that prove a law is true. A law is a statement of fact, but a theory is an explanation. A theory is a proposed law that has not yet been peer reviewed.
Explanation:
PCR is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a mixture of DNA molecules.
