DNA fingerprinting is a technique of determining nucleotide sequences of certain areas of DNA which are unique to each individual. Each person has a unique DNA fingerprint. Each fingerprint is the same for every cell, tissue and organ of a person. DNA fingerprinting is the basis of paternity testing in case of disputes.
For DNA fingerprinting, DNA is obtained from

Options

A. blood
B. hair root cells
C. semen
D. all of these

Answer

D