🦷 DAT Exam Prep

Which enzyme unwinds the DNA double helix during replication?

A DNA polymerase
B Helicase
C Ligase
D Primase

βœ“ Correct Answer: Option B

Helicase breaks hydrogen bonds between base pairs, creating the replication fork. DNA polymerase then synthesizes new strands.

πŸ’‘ Why is B) the correct answer?

The correct answer to the question "Which enzyme unwinds the DNA double helix during replication?" is Option B: Helicase.

The other options β€” A) DNA polymerase, C) Ligase, D) Primase β€” are incorrect for this DAT Exam Prep question. As explained above: Helicase breaks hydrogen bonds between base pairs, creating the replication fork. DNA polymerase then synthesizes new strands.

πŸ“š About This DAT Exam Prep Practice Question

This 2-level DAT Exam Prep question from the Biology topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free DAT Exam Prep practice test or use flashcards for spaced repetition review.

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