As a result of this complementarity, all the information in the double-stranded sequence of a DNA helix is duplicated on each strand, which is vital in DNA replication.. 
However, Branched DNA can occur if a Third Strand of DNA is introduced and contains adpersona rẹ́gíons able to hybridi with the f1916Yóò Regions of the pre-Existing double-St-rand.. 