DNA fingerprinting is based on possessing in DNA of -: (A) Constant Tandem Repeat, (B) Variable Number Tandem Repeats (VNTR), (C) Non-repeatative sequence, (D) Exon
Answer is B. Variable number of tandem (one after another) repeats (VNTR), is unique for any individual & therefore serves as molecular DNA fingerprint. VNTR may be short tandem (microsatellite) or large tandem (minisatellite) repeats.