Fig. 1: DNA design.

Design of DNA containing a forward primer region of 20 nucleotides, random region of 64 nucleotides (where one letter N represents one random nucleotide) and a reverse primer region, containing 21 nucleotides.
Design of DNA containing a forward primer region of 20 nucleotides, random region of 64 nucleotides (where one letter N represents one random nucleotide) and a reverse primer region, containing 21 nucleotides.