Reference sources: 1  Petwave.com â Obesity Problems. 2  Petwave.com â Dogs Health. 3  Petwave.com â Cancer Types.  Dog Time.com â 10 Most Serious Pet Diseases.
Only a small sample of cells is needed for DNA fingerprinting. A drop of blood or the root of a hair contains enough DNA for testing. Semen, hair, or skin scrapings are often used in criminal investigations. A person who has DNA fingerprinting done voluntarily usually provides a sample of blood taken from a vein.
What is DNA Fingerprinting? DNA fingerprinting is a process through which the unique genetic code of a person is identified and codified. DNA fingerprint is called so because just like the technology of fingerprint became very popular in the 1930s as means of crime detection, beginning in the 80s, DNA testing achieved a similar level of popularity in forensic science.