dna

A unique genetic makeup. DNA testing is done to prove the actual parentage and/or identity of an animal.

SOURCE: apluspetgoods.com

A nucleic acid that carries the genetic information in the cell and is capable of self-replication; it consists of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds, the sequence of the nucleotides determining individ

SOURCE: dogs.consultinghealth.com