Which of the following is not required for any of the techniques of DNA fingerprinting available at present?

Zinc finger analysis is not required for any of the techniques of DNA fingerprinting available at present.

Zinc finger proteins are among the most abundant proteins in eukaryotic genomes. Their functions are extraordinarily diverse and include DNA recognition, RNA packaging, transcriptional activation, regulation of apoptosis, protein folding and assembly, and lipid binding.

Restriction enzymes, DNA-DNA hybridization, and  Polymerase chain reaction are required for DNA Fingerprinting.