Powered by Bravenet Bravenet Blog

Wednesday, October 10th 2007

5:33 PM

About DNA/Genealogy testing

  • Mood:

DNA tests that are used in genealogy are using very small snippets taken out of a very long DNA molecule. Current genealogy DNA tests do NOT identify your ethnic background, or any hereditary problems like defects of susceptibility to any disease.   Thus the term "Junk DNA" describes where genealogy information is found.
There are two kinds of DNA Tests:
Y DNA - tests males for the Y chromosomes that are passed down from father to son, to son, etc.
Y tests started with just a few  markers being tested and now can test for dozens of  markers that have been passes down.

The Y markers are subject to occasional changes thus a son may not have exactly the same test result as the great-grandfather.   Because of these changes, results can be a predictor of how many generations you will go back to find a common ancestor.
Mitochondrial DNA -  test males and females for DNA passed down from mother to child.
The Mitochondrial DNA rarely has changes from generation to generation thus cannot be reliable to say how close similar results are related. 

The higher number of markers tested is like using a larger telescope to view stars.  My first test a long time ago confirmed my placement in the family tree and identified a distant cousin who was also in the same tree.    In the future, as more people get DNA tests, the connections learned may be enormous.
Privacy will always be a concern and your privacy requests must be adhered to.  
You may want to never divulge your results but want to use it to compare to others who allow their results to be known.
You may want to release your results under an alias so that others can see your results and post comments for you to see.
You may have no concerns and freely post your DNA results along with email address, home address, and even telephone number.
According to information online at http://dna.ancestry.com you may be able to confirm or deny branches in your tree.   I may find that the two Ellis lines in our tree are or are not related.   That could save me a lot of time.  You could identify other researchers who could have a vast storehouse of data on part of your tree.  
Researchers have already identified DNA patterns of the early ancestors and you may be 99.99% pure Japanese but have Attila the Hun's DNA pattern.  Don't be concerned to much as this snippet of information may make your tree very easy to trace.
I do not have all the answers but I'll gladly look for information.   I will gladly research your questions posted here.  Please post your experiences here to so that others may learn from them too.   ( Allen Wheatley http://teafor2.com      DNA@teafor2.com )

23 Comment(s).

Posted by Toga Hudson:

expensive as heck too:)
Wednesday, November 28th 2007 @ 1:55 PM

Posted by Allen Wheatley:

Yes. $150 to $200 is a little steep to give away for Christmas presents.
Wednesday, November 28th 2007 @ 7:05 PM

Posted by Dixie Parchman Williams:

Looking for Parchmans in Tx, Ok, and Ark. please let me know if you run across ant your way !! Thank you. Dixie
Saturday, April 17th 2010 @ 9:36 PM

Posted by seo company:

wow nice info
Sunday, March 6th 2011 @ 2:52 PM

Posted by Nike Zapatillas:

Buscando en Internet para los guantes de béisbol que puede producir resultados varias veces de ir de tienda en tienda.
Friday, November 18th 2011 @ 9:49 PM

Posted by :

thanks for sharing information..
sigit hermawan
sigit hermawan go blog.com
sigit hermawan
kumpulan artikel menarik dunia
lucu dan menarik
Saturday, January 21st 2012 @ 11:48 AM

Posted by kayseri nakliyat firmaları:

expensive as heck too:)
Wednesday, November 28th 2007 @ 1:55 PM:)
Wednesday, March 7th 2012 @ 4:18 AM

Posted by Huskans:

very good site.
Tuesday, March 13th 2012 @ 3:40 AM


please let me know if you run across ant your way..
Wednesday, March 21st 2012 @ 3:10 PM

Posted by Chat:

I am really inspired from your blog hoping you will be there with more interesting post like this.
Monday, April 2nd 2012 @ 6:26 PM

Posted by Sohbet:

Very good and interesting site with very good look and perfect information ... I like it.
Friday, April 20th 2012 @ 10:16 PM

Posted by evden eve nakliyat:

thank you
Thursday, May 10th 2012 @ 10:08 AM

Posted by Digital Agency:

It's really very informative article, thanks for shared.
Wednesday, May 23rd 2012 @ 12:25 AM

Posted by Sanal Market alışverişi:

wow nice info
Tuesday, May 29th 2012 @ 10:04 AM

Posted by kitchen sink:

hi, very interesting blog. keep great post.
Tuesday, June 19th 2012 @ 11:08 PM

Posted by Karia Suresi:

That could save me yes I`m cat a book wonderfull lot of time. You could identify other researchers who could have a vast storehouse of data on part of your tree.
Friday, April 11th 2014 @ 5:54 AM

Posted by Nikah Şekeri:

I am really inspired from your blogwith more post like this.
Friday, May 16th 2014 @ 4:43 PM

Posted by Jan:

Do you know if the DNA test would show relative such as father to daughter or relatives of father to daughter?
Tuesday, March 22nd 2016 @ 2:19 PM

Posted by komponen elektronika:

Posted by alat pembesar payudara dan bokong:

coincidence in the company where I work now have a product testing genetic testing for human health in the future. Similar to what is described above. Thank you
Monday, January 23rd 2017 @ 10:03 AM

Posted by alatukurkadarair:

Jual Alat Ukur Kadar Air untuk mengukur kadar air jagung, beras, gabah, biji coklat, kopi, daun tembakau, tepung terigu, tapioka, kayu, kopra dan lainya.
by Alat ukur kadar air
Monday, February 6th 2017 @ 10:24 PM

Posted by Ali:

Do not forget When You Culd quite simply get the new web hosting in lahore tv channel's anchors hosting in lahore 100 % free, And
Really didn't ?
Saturday, December 2nd 2017 @ 12:03 AM

Posted by Elizabeth:

Rumor-- cheap web hosting in lahore Maay Play A Major role In Almost Anny Website administration
Saturday, December 2nd 2017 @ 12:18 AM

Post New Comment

No Smilies More Smilies »