Editing Haplotype (section)

===UEP results (SNP results)===

[[Unique-event polymorphism]]s (UEPs) such as SNPs represent [[haplogroup]]s. STRs represent haplotypes. The results that comprise the full Y-DNA haplotype from the Y chromosome DNA test can be divided into two parts: the results for UEPs, sometimes loosely called the SNP results as most UEPs are [[single-nucleotide polymorphisms]], and the results for [[Microsatellite (genetics)|microsatellite]] [[short tandem repeat]] sequences ([[Y-STR]]s).

The UEP results represent the inheritance of events it is believed can be assumed to have happened only once in all human history.  These can be used to identify the individual's [[Human Y-chromosome DNA haplogroup|Y-DNA haplogroup]], his place in the "family tree" of the whole of humanity.  Different Y-DNA haplogroups identify genetic populations that are often distinctly associated with particular geographic regions; their appearance in more recent populations located in different regions represents the migrations tens of thousands of years ago of the direct [[patrilineal]] ancestors of current individuals.