Why "Middle East and North African" disappears for SE Europeans when they are mixed with northern?

[Sikeliot]

Full Cretans, Sicilians, Calabrese can score very high Middle Eastern on 23andme.

But when I see half North European, half SE Europeans, their MENA gets reallocated into European categories and can disappear altogether.

Why is this?

[Immortal Technique]

Because northern genes are stronger than subhumans brownies.

[Lábaru]

You are wrong, MENA does not disappear, only decreases.

[Sikeliot]

You are wrong, MENA does not disappear, only decreases.

Mine is 2.4% on 23andme. Half Sicilians, Cretans etc. can score none or like 0.1%. But full ones score 10% or higher at times so where does it all go?

[wvwvw]

Mine is 2.4% on 23andme. Half Sicilians, Cretans etc. can score none or like 0.1%. But full ones score 10% or higher at times so where does it all go?

To heaven;

[Lábaru]

Mine is 2.4% on 23andme. Half Sicilians, Cretans etc. can score none or like 0.1%. But full ones score 10% or higher at times so where does it all go?

Because you have a blend of Iberian, Poland-Slavic and Sicilian, not a half SE+North european.

[Sikeliot]

Because you have a blend of Iberian, Poland-Slavic and Sicilian, not a half SE+North european.

But why does someone who is half and half, or something like half Cretan Greek half Irish, score almost 100% European if a full Cretan Greek does not? Why do those genes get reallocated?

[Lábaru]

But why does someone who is half and half, or something like half Cretan Greek half Irish, score almost 100% European if a full Cretan Greek does not? Why do those genes get reallocated?

Probably a misunderstanding in the data, show us an example.

[alfieb]

To heaven;
Allahu akbar!

[Sikeliot]

Probably a misunderstanding in the data, show us an example.

Half Cretan..

http://i59.tinypic.com/dyasso.jpg

[Lábaru]

Half Cretan..

http://i59.tinypic.com/dyasso.jpg

as I said, must be a mistake in the interpretation of data, or perhaps is another error, often mixed people have confusion with their ancestors, maybe he is not half Cretan.

[Sikeliot]

That's how all half Cretans, half Sicilians etc score when mixed with North Euro.

[Lábaru]

That's how all half Cretans, half Sicilians etc score when mixed with North Euro.

Then it is a misinterpretation of the data, only those who designed the way to interpret it can correctly answer your question.

But there are two possibilities

1º the northern European genes deleted MENA ADN with magic

2º the scientists interpret the data erroneously, probably confusing the ancient Neolithic MENA genes of all Europeans, including northern European, with the most modern MENA ADN of the half Cretan.


using Ockham's razor, the second option is the only logical.

[Sikeliot]

The same happens to southern Italians also, it gets sucked into Italian and Balkan when the person is half North Euro.

[Isleño]

Full Cretans, Sicilians, Calabrese can score very high Middle Eastern on 23andme.

But when I see half North European, half SE Europeans, their MENA gets reallocated into European categories and can disappear altogether.

Why is this?This is a very strange phenomenon I've also noticed from 23andme. I know someone that has a full Canarian dad, but a Cajun French mother (his dad was from my community but moved away and married a Cajun woman and I know this guy through his dad who is a friend of my family) and his dad tested with him and his dad scored 16% North African and he scored like only 2%. That's wild. But the guy is mixed Canarian/Cajun French, so it's sorta like the situation you talked about. I know genetics works funny and is very random, but damn, that's a huge difference and seems kinda off, I don't know... lol.

[Sikeliot]

See? I am glad someone else noticed the same thing, it's SO odd to me.

[Kale]

That just shows 23andMe isn't exactly the best tool for this sort of thing.

[Isleño]

See? I am glad someone else noticed the same thing, it's SO odd to me.
Also, I know another guy in a town about 50 miles from me that had a Canarian great grandfather (his great grandpa was from another area with Canarians, not mine) and he scored 0.1% North African and his grandfather is very dark and looks probably 20% North African, so he should at least be 2 1/2% North African, but he got a tenth of a percent. Those are the only two cases I've seen, this guy and the other guy that is half Canarian with 2% North African. Both have Northern European admixture. So maybe it's something about the Northern European admixture that causes problems with the MENA, I don't know, but I've noticed the same exact thing. I just never discussed it before though.

[Isleño]

That just shows 23andMe isn't exactly the best tool for this sort of thing.
The more I learn about 23andme, the more I think they are not the holy grail of genetic testing everyone makes them out to be. For instance, I recently learned they use both Mozabites AND Palestinians for the North African reference population. Palestinians? Wtf....they are not even North African. That alone would cause faulty problems.

[Sikeliot]

Also, I know another guy in a town about 50 miles from me that had a Canarian great grandfather (his great grandpa was from another area with Canarians, not mine) and he scored 0.1% North African and his grandfather is very dark and looks probably 20% North African, so he should at least be 2 1/2% North African, but he got a tenth of a percent. Those are the only two cases I've seen, this guy and the other guy that is half Canarian with 2% North African. Both have Northern European admixture. So maybe it's something about the Northern European admixture that causes problems with the MENA, I don't know, but I've noticed the same exact thing. I just never discussed it before though.


Maybe to their calculators, North Euro plus MENA comes out Southern Euro :lol: It probably combines together and gets read as Italian and Balkan.

[Isleño]

Maybe to their calculators, North Euro plus MENA comes out Southern Euro :lol: It probably combines together and gets read as Italian and Balkan.

You know what, that's probably true. That could be happening, it could be misreading it. None of these DNA companies have 100% accurate tests, we are not at that level of testing yet, but soon, next generation testing will be available. But that's probably the only explanation for what's going on with the MENA when North European is involved.

[Alessio]

Full Cretans, Sicilians, Calabrese can score very high Middle Eastern on 23andme.

But when I see half North European, half SE Europeans, their MENA gets reallocated into European categories and can disappear altogether.

Why is this?

? I score 4.3 % MENA and I'm not the only one with similar ancestry who does actually score some of it but I must say it's rare indeed. It's also possible my paternal side scores more MENA than average but I can't verify that.
Before the update I had only 0.1 % Middle Eastern and before that update none. I see your point though

I have a Sicilian from Palermo in my list who scores 10.8% MENA and his son (half Irish) scores 3.8% (both are DNA relatives)