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Which enzyme unwinds the DNA double helix during replication?

  • A DNA polymerase
  • B Primase
  • C Helicase
  • D Ligase

Correct answer: C. Helicase

Explanation: Helicase breaks hydrogen bonds between base pairs, unwinding the double helix and creating a replication fork.

Concept context

Mendel's laws, inheritance patterns, DNA structure, and molecular biology. Core of NEET biology.

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