What is "y-str"

STR rate ranges as of 2008 for 17- STRs

width = 80 style = "background:#cfcfcf" rowspan = 2 | STR
site

colspan = 3 style = "background:#cfcfcf" | Mutation Rate (x 10)

style = "background:#cfcfcf" width = 90 | LB-96%CI

style = "background:#cfcfcf" width = 80| 'rate'

colspan = 7 | From table 1. Sanchez-Diz et al. 2008.
Note some of the N in the 17 STR are quite low in frequency

A Y-STR is a short tandem repeat (STR) on the Y-chromosome. Y-STRs are often used in forensics, paternity, and genealogical DNA testing. Y-STRs are taken specifically from the male Y chromosome. These Y-STRs provide a weaker analysis than autosomal STRs because the Y chromosome is only found in males, which are only passed down by the father, making the Y chromosome in any paternal line practically identical. This causes a significantly smaller amount of distinction between Y-STR samples. Autosomal STRs provide a much stronger analytical power because of the random matching that occurs between pairs of chromosomes during the zygote making process.