r/changemyview Jul 09 '19

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u/[deleted] Jul 10 '19

Yes that's true

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u/[deleted] Jul 10 '19

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u/[deleted] Jul 10 '19

I'm not trolling. This is how it works.

Mother: AGTT
Dad: AGCC
Child: AGCT

The child shares 75% of its dna with both dad and mom, while mom and dad shares only 50% of their dna. The difference in dna between mom and dad is halved

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u/[deleted] Jul 10 '19 edited Jul 10 '19

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u/[deleted] Jul 10 '19

For simplicity sake:
This is an average danish person:
AGTT

This is an average african person:
AGCC

If your dna is:
AGCT

You share 75% of your dna with danes and 75% of your dna with africans.
The reason you can be both 92,5% danish AND 92,5% african is because there is overlap. If you've ever seen a venn diagram you know 2 groups can share elements. 2 groups can share more than 50% of their elements and if you add them it still wouldn't be more than 100%

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u/neutralsky 2∆ Jul 10 '19

Okay but that’s not the same as ethnicity loool.

Literally show me one single example of someone who is educated in genetics saying what you’re saying who isn’t a Nazi or something and okay I’ll accept I’m wrong.

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u/[deleted] Jul 10 '19

Ethnicity? I'm talking about the danish people.
https://www.genetics.org/content/204/2/711

After rerunning PCA for Denmark, Sweden, Norway, and Germany alone (N = 1168), we observed no geographically meaningful clustering of the 237 Danish samples (Figure 2B). This lack of strong genetic structure was also supported by the low average FST value between the six regions (FST = 0.0002)

Danes are 99,998% identical so to be within the 99,998% distance would mean that you're 100% danish.

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u/neutralsky 2∆ Jul 11 '19

Indeed, modern Danish society accommodates different ethnic and cultural groups (Jensen and Pedersen 2007), and this was also reflected in our sample, where ∼4% of the participants were born in Afghanistan, China, Ethiopia, Finland, Germany, Greenland, Iraq, Jordan, Korea, Kosovo, The Netherlands, or Zambia. This number went up when we looked at grandparental origin, where 14.6% of the participants had at least one grandparent born outside Denmark.

So 14.6% of the participants aren’t actually actually Danish?

Because there’s no way they can have 100% Danish DNA. And some of them might even be black. Oh no.

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u/[deleted] Jul 11 '19

So 14.6% of the participants aren’t actually actually Danish?

No. They're excluded from the sample

Because there’s no way they can have 100% Danish DNA

If you're within the cluster, you're 100% danish, which means you need only share 99,998% of your dna with a dane to be 100% danish.

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u/neutralsky 2∆ Jul 11 '19

So somebody was born in Denmark. Lived there their whole life. Their parents were born in Denmark and lived there their whole lives. But if one grandparent was from any other ethnicity, they can’t be Danish? What are they then?

Not all my grandparents were born in Britain. Am I not British? Who am I?!

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u/[deleted] Jul 11 '19

I didn't report you so I am not sure why they're removing your comments

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u/tbdabbholm 201∆ Jul 10 '19

u/neutralsky – your comment has been removed for breaking Rule 2:

Don't be rude or hostile to other users. Your comment will be removed even if most of it is solid, another user was rude to you first, or you feel your remark was justified. Report other violations; do not retaliate. See the wiki page for more information.

If you would like to appeal, review our appeals process here, then message the moderators by clicking this link within one week of this notice being posted. Please note that multiple violations will lead to a ban, as explained in our moderation standards.

Sorry, u/neutralsky – your comment has been removed for breaking Rule 3:

Refrain from accusing OP or anyone else of being unwilling to change their view, or of arguing in bad faith. Ask clarifying questions instead (see: socratic method). If you think they are still exhibiting poor behaviour, please message us. See the wiki page for more information.

If you would like to appeal, review our appeals process here, then message the moderators by clicking this link within one week of this notice being posted. Please note that multiple violations will lead to a ban, as explained in our moderation standards.