What is it that forms the basis of DNA Fingerprinting

Options

A. The relative proportions of purines and pyrimidines in DNA
B. The relative difference in the DNA occurrence in blood, skin and saliva
C. The relative amount of DNA in the ridges and grooves of the fingerprints
D. Satellite DNA occurring as highly repeated short DNA segments

Answer

D

Explanation

Satellites are short sequence of DNA repeated again and again to form long sequences. Variation in the length of these satellites DNA is unique to every human being. This has been helpful in DNA fingerprinting.