PCR Scientific Writing & Communication 5

Question 1

An SOP for a validated PCR assay is revised. Which document-control practice is essential?

Accepted Answer

Assign a new version number, record the changes and effective date, and archive the previous version

Answer

Document control means versioning, a change history, approval, and archiving superseded versions.

Question 2

When describing replicates in a methods section, which statement is clearest?

Accepted Answer

"Three biological replicates, each with three technical qPCR replicates, were analyzed."

Answer

Separating biological from technical replicates and giving the number of each avoids ambiguity about n.

Question 3

A results statement reads: 'Gene X was significantly upregulated.' What should be added to make it rigorous?

Accepted Answer

The fold change, statistical test used, p-value, and sample size

Answer

Claims of significance need effect size, the test used, the p-value, and n so readers can judge them.

Question 4

Which item is required in a clinical laboratory test report under CLIA regulations (42 CFR 493.1291)?

Accepted Answer

The laboratory name and address where the test was performed

Answer

CLIA requires reports to include the patient identifier, test name, results, the laboratory's name and address, the report date, and other key elements.

Question 5

A scientific poster on a new multiplex PCR assay is being designed. Which approach communicates best?

Accepted Answer

Use a clear title, short sections, key figures, and a concise take-home message

Answer

Posters work best when they are visual and scannable, with brief text and a clear main conclusion.

PCR - Polymerase Chain Reaction Certification Practice Test

PCR - Polymerase Chain Reaction Certification Practice Test

PCR Scientific Writing & Communication 5