Which of the following is required for unwinding of DNA -

Ans. is 'a' i.e., Helicase proteinfunctionDNA polymerasesDeoxynucleotide polymerizationHelicasesProcessive unwinding of DNATopoisomerasesRelieve torsional strain that results from helicase induced unwindingDNA primaseInitiates synthesis of RNA primersSingle-strand binding proteinsPrevent premature reannealling of dsDNA DNA ligaseSeals the single strand nick between the nascent chain and Okazaki fragments on lagging strand