MHT CET 202626 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 26 April
- Shift
- Morning Shift
- Subject
- Biology
- Chapter
- Molecular Basis of Inheritance
MHT CET 2026 · 26 April · Morning Shift · Biology · Molecular Basis of Inheritance
The enzyme / proteins that prevent/s recoiling of the separated...
The enzyme / proteins that prevent/s recoiling of the separated strands of DNA during replication is __________.
Options
- Atopoisomerase
- Bhelicase
- CSSB proteins
- 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 replication fork, while DNA polymerase is responsible for the actual synthesis of the new DNA strand.
Answer: SSB proteins
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 replication fork, while DNA polymerase is responsible for the actual synthesis of the new DNA strand.
Answer: SSB proteins