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Messages - pughcd

Pages: [1] 2 3 4 ... 10
1
Ancestral Family Tree DNA Testing / Re: 500 4th cousins
« on: Saturday 10 February 24 21:02 GMT (UK)  »
Hi @Gadget,

When I log on to my homepage on a laptop and check my DNA Results Summary I see three panes; Origins, DNA Matches & ThruLines. The middle pane has photos of new DNA Matches who have also attached a photo to their profile. Underneath the photos it tells me that I have 113 4th Cousins or Closer. This is how Petros knew how many 4th Cousins or Closer were matching.  This information is not available through the Ancestry App on iPhone.

For comparison my half-sibling has 260 4th Cousins or Closer. I manage two other accounts and they have 255 and 650. It is pretty variable!

pughcd

2
Ancestral Family Tree DNA Testing / Re: Inheritance of DNA
« on: Wednesday 09 August 23 12:41 BST (UK)  »
@JMB1943

The widely accepted rule is that we all inherit 50% of our DNA from each parent.

However, some people argue that whilst the autosomes are generally the same size, the X and Y chromosomes are not equal in size so theoretically  males (XY) inherit slightly less DNA than females (XX). The Y-chromosome is one third of the size of the X-chromosome and contains about  55 genes while the X-chromosome contains about 900 genes.
https://www.genome.gov/about-genomics/fact-sheets/Chromosomes-Fact-Sheet


When you take an autosomal DNA test like Ancestry DNA , 23andMe, Ft-DNA you may be getting some X and Y chromosome analysis but as far as I am aware only FT-DNA reports the X-chromosome data in the results.
https://isogg.org/wiki/X-chromosome_testing and https://isogg.org/wiki/Autosomal_DNA_testing_comparison_chart

It is never 60:40, 70:30 or 80:20.

3
Ancestral Family Tree DNA Testing / Re: is this valid
« on: Monday 10 July 23 16:18 BST (UK)  »
You may be interested in the Genetic History of the United Kingdom; Peoples of The British Isles project, Oxford University, UK
https://www.youtube.com/watch?v=6ANNHMzmxlI

4
Ancestral Family Tree DNA Testing / Re: DNA close match
« on: Thursday 15 June 23 11:45 BST (UK)  »
Ancestry cousin predictions are fairly general but improved data at the DNA Painter website might be more helpful. If you check the Shared cM Project at DNA Painter and enter 389cM it gives a 73% probability for great-great aunt/uncle, half great aunt/uncle, half great niece/nephew, great-great niece/nephew, half 1C or 1CIR. Check the website for other possibilities.

pughcd

5
Hi farmeroman,

Since you have chosen not to take up a subscription with MyHeritage your family tree is limited to only 250 individuals. I presume your GEDcom file contains more than 250 individuals so this could be an issue.

pughcd

6
Ancestral Family Tree DNA Testing / Re: 23 and me cannot download segment data
« on: Saturday 22 April 23 13:08 BST (UK)  »
Hi stonechat,

Well you don't indicate when this change took place but I can confirm that the 23andMe website has been updated and there is also a new annual Premium Membership 23andMe+ which gives you access to additional features. I have the annual membership so can see the segment data but even then it's not very user friendly.

So, select a DNA match from your list and click into their report. Go to Your Genetic Relationship. View DNA Details. Click Compare with More Relatives. Select your profile from the List and add it to the Comparison tool. Click Compare. This should open a new page with full Segment graphics. Under the Graphic you will see the Detailed Segment Data. You should be able to Right Click, Highlight and Select this Data to Copy into the DNAPainter website.

As I say it's not very user friendly but it works. However, I do not know if this feature is available to you if you have not upgraded to 23andMe+

pughcd

7
Ancestral Family Tree DNA Testing / Re: Good books on DNA Inheritance?
« on: Tuesday 18 April 23 18:19 BST (UK)  »
Thank you. Your answer suggests that you probably wouldn't buy the current version today. I'm not sure that there is a second update in the pipeline. I am aware of Blaine Bettinger's role other than as author, but thanks.

I have the second edition and use it regularly. I clearly misunderstood your question! To clarify,  I have the second edition but would buy the third edition if it came out.

8
Ancestral Family Tree DNA Testing / Re: Good books on DNA Inheritance?
« on: Tuesday 18 April 23 08:31 BST (UK)  »
I wonder if I may chip in on this topic. I see that Blaine Bettinger's book was last updated in 2019. While I know that the basics of DNA as applied to genetic genealogy have not changed since then, it is a fast-moving subject and how it is tested and announced by companies like Ancestry and MyHeritage certainly has changed a lot in those 4 years. So to those of you who have it and refer to it constantly, may I ask whether you would still buy it today?

I would definitely buy a third updated edition if and when it comes on the market.  Bettinger's 2nd edition was updated from the original 2016 edition, with new content such as; Y700(FT-DNA), DNA Painter and the ethical use of DNA information by government and third parties. The colour diagrams are excellent and the chapters are well set out. It cost $29.99 but the quality shows. The Holton textbook is £14.99 (Pen & Sword Family History) but only has monochrome diagrams.

Additionally Blaine Bettinger writes the excellent blog "The Genetic Genealogist - Adding DNA to the Genealogist's Toolkit" so one can access up to date content such as "The Growing Phenomenon of Unlinked Family Cluster March 2023" etc.

pughcd

9
Ancestral Family Tree DNA Testing / Re: Good books on DNA Inheritance?
« on: Monday 17 April 23 17:27 BST (UK)  »
No sorry, never heard of this book before. Will give it a look on Kindle. Thanks!!

pughcd

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