HESI A2 Exam Prep 2026

Real HESI A2 Questions.
Real Accuracy. Real Results.

Practice with exam-accurate HESI A2 questions that match the real test in format, difficulty, and logic. Trusted by students accepted into nursing programs across the United States.

8
Exam Sections
75%
Typical Pass Score
~5hr
Total Test Time
95%
Our Pass Rate

About DNA & RNA

DNA polymerase adds nucleotides to a growing DNA strand and proofreads for errors during replication. Learn its key role in accurate DNA synthesis.

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DNA & RNA HESI A2 Practice Questions

Free DNA & RNA practice questions for the HESI A2 exam with detailed rationales.

Question 1 of 2

What is the role of DNA polymerase during DNA replication?
It adds nucleotides to the growing DNA strand.
It repairs damaged DNA.
It synthesizes RNA from a DNA template.
It unwinds the DNA double helix.