Biology - Molecular Basis of Inheritance Question with Solution | TestHub
BiologyMolecular Basis of InheritanceReplicationMedium2 minPYQ_2026
BiologyMediumsingle choice
The enzyme / proteins that prevent/s recoiling of the separated strands of DNA during replication is __________.
Options:
Answer:
C
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
Stream:MHT_CET_MEDICALSubject:BiologyTopic:Molecular Basis of InheritanceSubtopic:Replication
⏱ 2mℹ️ Source: PYQ_2026
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