Function of Topoisomerases: (A) Deoxynucleotide polymerization, (B) Relieve torsional strain, (C) Initiates synthesis of RNA primers, (D) Prevent premature reannealing of dsDNA
Answer is B. Classes of Proteins Involved in ReplicationProteinFunctionDNA polymerasesDeoxynucleotide polymerizationHelicasesATP -driven processive unwinding of DNATopoisomerasesRelieve torsional strain that results fromhelicase-induced unwindingDNA primaseInitiates synthesis of RNA primersSingle-strand bindingproteins (SSBs)Prevent premature reannealing of dsDNADNA ligaseSeals the single strand nick between thenascent chain and Okazaki fragments on the lagging strandRef: Harper&;s Biochemistry; 30th edition; Chapter 35; DNA Organization, Replication, & Repair