this post was submitted on 21 Apr 2026
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[–] ChillCapybara@discuss.tchncs.de 34 points 1 day ago (1 children)

Researchers say the findings may also someday help police investigators conjure up the faces of suspects from their DNA samples. But that potential application wades into murky ethical territory

There it is

[–] applebusch@lemmy.blahaj.zone 5 points 1 day ago (2 children)

Yeah I'm sure it will never make a mistake or be relied upon as the gospel of jesus like you see with, oh idk every single piece of technology used by police provided it aligns with their existing bias at the moment

[–] SineSwiper@discuss.tchncs.de 2 points 23 hours ago

PBS did a recent video on how DNA evidence is not nearly as infallible as copoganda make it out to be.

[–] Corkyskog@sh.itjust.works 3 points 1 day ago

Find a dozen people who look like suspect. Do DNA analysis on dozen "doppelgangers". Take DNA from "doppelganger" that is the closest match, present to court using "expert" witness.

[–] luthis@lemmy.nz 98 points 2 days ago (5 children)

Strange, almost like phenotype is dependent on genotype?

[–] Azzu@lemmy.dbzer0.com 79 points 2 days ago (5 children)

You're telling me people whose genetics make them look similar have similar genetics???

[–] paraphrand@lemmy.world 32 points 2 days ago (1 children)

Not proven until now.

These “duh” comments are always here in these situations.

[–] Azzu@lemmy.dbzer0.com 21 points 2 days ago (1 children)

We're just joking around here my friend :) of course it's important to confirm, still funny every time

[–] paraphrand@lemmy.world 11 points 2 days ago (1 children)

I hope so, that’s good to hear. Some people seem so pissed off when making such comments about “useless” studies. 😔

[–] Azzu@lemmy.dbzer0.com 6 points 2 days ago (2 children)

People in text always sound more pissed off than they were. That mostly has to do with your expectations though ;)

[–] fartographer@lemmy.world 4 points 2 days ago (1 children)

You think this sounds angry???

[–] partofthevoice@lemmy.zip 6 points 2 days ago (1 children)
[–] fartographer@lemmy.world 4 points 2 days ago (1 children)

sorry. I thought I was being friendly. Perhaps you'd prefer periods as my punctuation. I hope you're happy.

[–] partofthevoice@lemmy.zip 4 points 1 day ago

I too have autism.

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[–] ChicoSuave@lemmy.world 6 points 2 days ago (4 children)
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[–] angrystego@lemmy.world 5 points 2 days ago

It seems this includes genes that don't play a direct role in the formation of facial features.

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[–] kerrigan778@lemmy.blahaj.zone 12 points 1 day ago (1 children)

Bad news for people that look like famous serial killers.

[–] Tiral@lemmy.world 4 points 1 day ago

So that's why I want to make people lamp shades so bad? /s

[–] hypna@lemmy.world 14 points 1 day ago (1 children)

If different people with similar visual characteristics have similar behavioral characteristics, doesn't that imply that perhaps we can judge a book by its cover?

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[–] ssfckdt@lemmy.blahaj.zone 7 points 1 day ago (1 children)

This kinda feels like a "duh." Or a "Well, makes sense"

[–] dovahking@lemmy.world 3 points 1 day ago (1 children)

Genetics, I can understand. But lifestyles? How?

[–] masterofn001@lemmy.ca 2 points 19 hours ago

Certain genetic mutations or chains of DNA can produce traits or characteristics a person exhibits, and can be hereditary.

Like diabetes, addiction, the way you and your dad have the same humor, natural abilities or inclination towards a subject, food allergies,

These traits could dictate a lifestyle, somewhat loosely defined .

[–] NullPointerException@lemmy.ca 31 points 2 days ago (5 children)

DNA has a limited number of genes. Considering the enormous amount of functions they need to encode, the number of genes for each function becomes relatively small. 8 billion people and thousands of generations, we’re bound to have duplicates.

[–] Brocon@lemmy.world 25 points 2 days ago

I would say it's even smaller in number. Because some combinations would not work and might kill you.

[–] angrystego@lemmy.world 6 points 2 days ago

Yes, but the article says that certain combinations occur more often that if it was random. People with similar faces tend to have similar genes that are nor related to facial features.

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[–] Skankhunt420@sh.itjust.works 7 points 1 day ago (2 children)

I've wondered this about people who act the same. They also tend to have some of the same facial expressions and mannerisms.

Maybe like our brains have certain tempaltes of personalities that we alter along the way. A starter personality of sorts.

[–] HeyThisIsntTheYMCA@lemmy.world 2 points 1 day ago* (last edited 1 day ago)

I mean there's this town in rural [state my family had a farm in but now we don't hallelujah farm work is hard] that everyone looks like me because, well, go back far enough and all 500 of them and me are related. First time I went to the old farm it was frightening. Like walking into a clone factory.

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[–] veniasilente@lemmy.dbzer0.com 17 points 2 days ago

...We all look like 98% similar.

[–] rainbowbunny@slrpnk.net 5 points 1 day ago (2 children)

How similar is DNA from convergent evolution animals?

I mean, my uncle (who spent very little time with his bio father) has all the same mannerisms as him. As do I and my mother and one of my brothers. Some of it is that we inherited similar skeletal structure so our posture is similar. Some of it, I dunno.

[–] GreenKnight23@lemmy.world 4 points 1 day ago

well, at some point, everything is a crab.

so I would assume pretty similar.

great question though.

[–] OldGrayDog@fedinsfw.app 12 points 2 days ago

Or maybe we're living in a simulation and whatever is generating it only has a finite number of characters. 😲

[–] temporal_spider@masto.ai 11 points 2 days ago (2 children)

@RegularJoe I'm curious about how this might work across ethnicities. I can't point to a photo, but several times, I've noticed people from other continents who could easily be someone I know here, except they're African, or Asian, when the person I know is white, just for example. Under the expected differences in hair, eyes, etc, the basic facial structure is the same. A DNA match seems less likely in these cases.

[–] RegularJoe@lemmy.world 8 points 2 days ago (1 children)

I don't have a great answer other than of the 32 studied, these were their stratification:

Related to population stratification, among the 16 look-alike pairs, 13 were of European ancestry, 1 Hispanic, 1 East Asian, and 1 Central-South Asian.

Source: https://www.cell.com/cell-reports/fulltext/S2211-1247(22)01075-0

But whether people who look close enough to perform as another, such as the "Chinese Obama" (Xiao Jiguo) I can't say.

https://www.nbcnews.com/news/china/chinese-president-barack-obama-lookalike-xiao-jiguo-charges-1-500-n444251

Then there's Indonesia's former president, Joko Widodo:

https://nextshark.com/people-love-indonesias-president-looks-like-barack-obama

It would be interesting to get the researchers to analyze their DNA.

[–] temporal_spider@masto.ai 3 points 1 day ago

@RegularJoe thank you! This is quite interesting. I'd forgotten about the celebrity look-alikes you mentioned. I'm not surprised the studies aren't there.

[–] borth@sh.itjust.works 9 points 2 days ago (1 children)

I don't think it's about a DNA match. Those people you mention could share more DNA than the rest of us, which could account for their similarities, but their DNA will never "match" anyone else's.

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[–] HubertManne@piefed.social 4 points 2 days ago

I always wondered about this in terms of I have known some types of folks that look similar and actually often have similar social traits and this includes me to.

[–] Crozekiel@lemmy.zip 4 points 2 days ago (1 children)

Why didn't they give FB-007 shirts?

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[–] StoneyPicton@lemmy.ca 7 points 2 days ago

Nice to see research shared like this, thanks. I've always been fascinated by facial similarities. The other thing I often look at, especially when pronounced, is the difference in the two hemispheres of the face.

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