<prompt> What is meant by melting of double stranded DNA:Splitting of double strands into single strandSplitting of DNA into fragmentsFormation of triple helixSeparation of bases.  <response>: A i.e. Splitting of double strands into single strand.Seperation of double stranded ds DNA into single stranded DNAQ is known as denaturation or melting of DNA. It is promoted by increasing temperature or decreasing salt concentration. So increased salt monovalent cation concentration increases TmQ. 