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MHT CET Medical202626 April 2026Morning ShiftBiologyMolecular Basis of InheritanceActual

The enzyme / proteins that prevent/s recoiling of the separated strands of DNA during replication is __________.

Options

  1. Atopoisomerase
  2. Bhelicase
  3. CSSB proteins
  4. Dpolymerase

Correct answer

C. SSB proteins

Step-by-step solution

During DNA replication, the enzyme helicase unwinds the DNA double helix by breaking the hydrogen bonds between the complementary bases. Once the strands are separated, Single-Strand Binding (SSB) proteins bind to the exposed single strands. This prevents the separated strands from re-annealing or recoiling back into a double helix, keeping them stable and accessible for the DNA polymerase to synthesize the new complementary strands. Topoisomerase relieves the torsional strain or supercoiling ahead of the replicati

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