GENEALOGY-DNA-L Archives

From: Rick Arnold <>
Subject: [DNA] significance of partial str repeats
Date: Sun, 1 Oct 2006 08:06:20 -0700 (PDT)

Playing around with the smgf y database this morning I noted about half of the STR fields provide value entry options for partial repeat values (e.g., dys 388.....11, 12, 12.2, 13, ....). I recall reading somewhere - probably on this list - that some (most) labs round partial repeats off to the closest whole number of repeats. The question is, wouldn't partial repeats be just as heritable from generation-to-generation as are full sequences of repeats? Thus wouldn't a difference between values of 12 and 12.2 on a marker be just as significant as a difference between 12 and 13 on the marker? If so, the reporting of both 12 and 12.2 as 12 strikes me as ill advised, to say the least. I hope I'm wrong.!!!

This thread:

• [DNA] significance of partial str repeats by Rick Arnold <>

  • Re: [DNA] significance of partial str repeats by Doug McDonald <>
  • Re: [DNA] significance of partial str repeats by