GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2005-11 > 1132536245
From: Shirley Becker <>
Subject: d loop explanation
Date: Sun, 20 Nov 2005 17:24:05 -0800
Thank you Ann
I really appreciate your taking the time to answer my question. It
struck me as odd the letters corresponded to the groups, but your
explanation helped clarify it.
Date: November 20, 2005 4:41:41 PM PST
Subject: Re: [DNA] d loop inquiry
In a message dated 11/20/05 4:02:25 PM Pacific Standard Time,
> I am not new, but I sure would like to know if the letters around
> the d loop image stand for the haplo groups types or what have you?
> You know H U etc.
If you're referring to the diagram of the circular mtDNA molecule at
then the letters are for a different set of abbreviations. Those
the locations of various tRNA (transfer RNA, a small molecule which
a specific amino acid and ferries it to a ribosome for assembling a
Amino acids can have three-letter or one-letter abbreviations.
There's a table
at Wikipedia which shows the amino acids, their abbreviations, and their
|d loop explanation by Shirley Becker <>|