Are there many zoonoses? Altogether, well over a hundred diseases are capable of being transmitted from animals to humans, although most are rare in North America. All domestic animals including dogs, cats, birds, horses, cows, sheep, goats and rabbits can potentially spread diseases to people, but rarely does this actually occur.
Why It Is Done. DNA fingerprinting is done to: 1  Find out who a person's parents or siblings are. 2  This test also may be used to identify the parents of babies who were switched at birth. 3  Solve crimes (forensic science).NA fingerprinting is done to: 1  Find out who a person's parents or siblings are. 2  Solve crimes (forensic science). 3  Identify a body.
Polymerase Chain Reaction (PCR) PCR can be used in DNA fingerprinting as a way to make numerous copies of isolated DNA. The process can selectively amplify a single copy of a desired sequence.