What method is used for the identification of individual organisms or species using DNA?

Genetic profiling is the method utilized for identifying individual organisms or species through their unique DNA characteristics. This process involves analyzing specific regions of an organism's DNA, which can include microsatellites or single nucleotide polymorphisms (SNPs), that are known to vary among individuals. The resulting genetic profile serves as a biological fingerprint unique to each organism, allowing for accurate identification and differentiation between species or individuals.

This technique can be applied in various fields, including forensic science, paternity testing, and biodiversity studies, as it provides a high level of specificity and sensitivity in DNA analysis. By comparing genetic profiles, researchers can determine relationships, establish individual identities, and potentially discover new species based on genetic distinctiveness.