Migration patterns and comparative studies of a group with high concentration with same last name, who either arrived at a present location, can be possibly traced using this information. If a common ancestor is found then genetic links with those with same last name could be established.
The knowledge gained from this research, could lead to finding new links between genes. HLA and other polymorphisms can be easier traced using Y-chromosome/surname database, as there is less recombination with maternal chromosomes as compared to chromosomes 1-22.
Evolution, molecular biology can gain new insights about human origins by comparative studies to other species. In forensic anthropology it can serve to distinguish between homo-sapiens and other hominids, and help to elucidate the relation or distinction between various hominid groups.
Non paternity events can also be possibly detected using this database, and lineage for community can be trace far backward in the past. DNA analysis have proven that human migration started over 22,000 years from Africa which is the Motherland of all human life.
As humans migrated to Europe and Asia mutations in skin, hair, eye sluts and even ear wax occurred. The ear wax of Asians is drier than Africans and their eye slits evolved to cope with glare from sunlight reflecting of snow.
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