Which aspect forms the basis of DNA finger-printing?

Question

Which aspect forms the basis of DNA finger-printing? (A) The amount of DNA found in samples of blood, saliva and skin. (B) The ratio of purines and pyrimidines present in DNA. (C) The Sequence of DNA present in the ridges and grooves of finger-prints. (D) The Satellite DNA showing high degree of repetition in DNA segments.

Tardigrade Admin · Accepted Answer

Variable Number of Tandem Repeat (VNTR) polymorphism is the basis of DNA fingerprinting which are short nucleotide repeats. DNA of each organism has specific sequences called restriction fragments that can be cleaved by restriction endonuclease enzymes to produce fragments of different lengths.

Q. Which aspect forms the basis of DNA finger-printing?

The amount of DNA found in samples of blood, saliva and skin.

The ratio of purines and pyrimidines present in DNA.

The Sequence of DNA present in the ridges and grooves of finger-prints.

The Satellite DNA showing high degree of repetition in DNA segments.

Variable Number of Tandem Repeat (VNTR) polymorphism is the basis of DNA fingerprinting which are short nucleotide repeats. DNA of each organism has specific sequences called restriction fragments that can be cleaved by restriction endonuclease enzymes to produce fragments of different lengths.