DNA testing

Post Reply
User avatar
Tinkerbell
Posts: 824
Joined: Sun Oct 25, 2015 7:40 pm
Location: Andalucia, Spain

DNA testing

Post by Tinkerbell » Sun Mar 12, 2017 12:41 pm

A question for you skeptical folk...what do you think of the DNA tests available that claim to unlock your genetic history? To let you find not only relatives but which part of the world your DNA originated from? I am fascinated and would like to have this done (it is available for 79 euros) but have since read an article that compared it to astrology...Anyone had it done?
http://www.telegraph.co.uk/news/science ... gless.html

User avatar
chaggle
Posts: 2313
Joined: Mon Oct 26, 2015 10:01 am

Re: DNA testing

Post by chaggle » Sun Mar 12, 2017 3:23 pm

No experience of it and little knowledge but it doesn't look too promising.

I'm not terribly interested in such things TBH.

I don't even know (and I'm not interested in) who my biological parents were.
Don't blame me - I voted remain :con

Matt
Posts: 867
Joined: Sun Oct 25, 2015 7:50 pm

Re: DNA testing

Post by Matt » Mon Mar 13, 2017 12:11 am

Tinkerbell wrote:A question for you skeptical folk...what do you think of the DNA tests available that claim to unlock your genetic history? To let you find not only relatives but which part of the world your DNA originated from? I am fascinated and would like to have this done (it is available for 79 euros) but have since read an article that compared it to astrology...Anyone had it done?
http://www.telegraph.co.uk/news/science ... gless.html
I've seen a few scientific reviews and it's basically nonsense. The sequencing is real but the interpretation is rather meaningless. Not sure I quite followed the criticisms but if you go back 10 generations, or 300 years then you have over a thousand ancestors each contributing 0.1% to your DNA. So whatever is picked up by these tests will be a rather random sampling of that very complex picture.

So they're just a bit of fun really.

Tony.Williams
Posts: 784
Joined: Mon Jul 25, 2016 8:05 am
Location: Still somewhere in England
Contact:

Re: DNA testing

Post by Tony.Williams » Mon Mar 13, 2017 3:22 am

I remember some years ago there was a TV programme which used genetic analysis to discover people's backgrounds (allegedly). The funniest was a woman who was the founder of some sort of "pure English" organisation who confidently took part, only to discover that she was anything but - IIRC a grandmother had been naughty with a passing Roma man, or something.

User avatar
chaggle
Posts: 2313
Joined: Mon Oct 26, 2015 10:01 am

Re: DNA testing

Post by chaggle » Mon Mar 13, 2017 6:14 am

And then there's this...

http://www.independent.co.uk/news/world ... 34797.html
A self-proclaimed white supremacist underwent a DNA test to 'prove' his genetic heritage, only to be told on live television he was 86 per cent European - and 14 per cent of Sub-Saharan African heritage.
Speaking to the Mail Online, he later described the DNA results as "short-science" used by the programme to "promote multi-culturalism". He said: "I agreed to the test because I assumed it was science.[...] It was a scientifically bankrupt procedure",
Don't blame me - I voted remain :con

Tony.Williams
Posts: 784
Joined: Mon Jul 25, 2016 8:05 am
Location: Still somewhere in England
Contact:

Re: DNA testing

Post by Tony.Williams » Mon Mar 13, 2017 8:46 am

"short-science" - that's a new one to me. Is it the latest anti-science way of denigrating inconvenient scientific results?

User avatar
Abdul Alhazred
Posts: 684
Joined: Sun Oct 25, 2015 7:52 pm
Location: Chicago
Contact:

Re: DNA testing

Post by Abdul Alhazred » Mon Mar 13, 2017 2:35 pm

Popular in the USA for several years now.

Not sure it promotes multiculturalism.

Here's a thread from another forum that might be of interest.

http://www.skepticalcommunity.com/forum ... 70#p777170
Yes, that one.

User avatar
Tinkerbell
Posts: 824
Joined: Sun Oct 25, 2015 7:40 pm
Location: Andalucia, Spain

Re: DNA testing

Post by Tinkerbell » Tue Mar 14, 2017 7:27 am

Maybe I'll save my money...my sister has traced our family back both sides and it's all English peasants going way back. Suppose I was hoping for something else in the mix. Well, we all came out of Africa originally, didn't we? Or has that theory changed now....

Tony.Williams
Posts: 784
Joined: Mon Jul 25, 2016 8:05 am
Location: Still somewhere in England
Contact:

Re: DNA testing

Post by Tony.Williams » Tue Mar 14, 2017 8:14 am

Tinkerbell wrote:Well, we all came out of Africa originally, didn't we? Or has that theory changed now....
It is broadly still true, but the situation becomes increasingly complicated with the occasional discovery of new hominina (which is apparently what members of homo genus are referred to these days - it's hard to keep up), and the degree of interbreeding between them (there's a little bit of Neanderthal in all of us Europeans - comments superfluous). But as far as I can make out, all of our distant ancestors ultimately came from Africa, albeit at very different times, and the earliest emigrants did some of their own evolving after they'd left.

Post Reply