How Far Scientists Go To Create Your Face From Your DNA | Science Skills

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Population geneticist Mark Shriver and his team at Penn State want to make replicas of faces using solely DNA. This kind of technology, once honed, could be essential for solving cold cases involving unidentified remains. Facial reconstructions are often a last-ditch effort to identify victims when other leads don't pan out, but traditional forensic sculptures are only approximations. Here's how Shriver Lab is trying to get us as close as we can to a copy machine.
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How Far Scientists Go To Create Your Face From Your DNA | Science Skills

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1 ноя 2021

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Комментарии : 71

@Asfand901 2 года назад

As a biotechnologist, I'd like to add a few things to this approach. Actually, a huge limitation of Genomics (study of genes) is that it doesn't account for the changes at the transcript (RNA)or proteomics (proteins) level. For example, if a person ends up having a burnt mark on the face or some physical abrasion done to the skin cheek bones, the DNA level studies will not be able to account for that as DNA cannot inform you for something it isn't involved in. That's why we have Omics study now. Could be the case that they showed SNP's to make the general audience understand what they do. Nevertheless, as they mentioned this technology is still in it's infancy, interesting approach however.

@tayablackrose29 2 года назад

What sufficient sample would have to be to determine the influence of hormones on facial development? Per say a female suspect whose DNA profile suggests more feminine look and actual high testosterone level resulted in more masculine appearance.

@kathryncarter6143 2 года назад

This is absolutely unreal. I'd have never even begun to imagine such a thing would ever be possible. Beyond amazing.

@Void84276 2 года назад

What sucks about this is that some people look similar. I've seen people I could swear that are related, but aren't. I wonder if we starting using this in the future if mistakes will be made where we point the finger at the wrong person. I'm not saying we shouldn't use this. It is amazing, but sadly nothing is perfect.

@JO-bo4yx 2 года назад

But then again, DNA.

@merrymachiavelli2041 2 года назад

The value, and likely use case, for this technology is more about finding initial leads and excluding people than positively identifying them. Sure, there is a chance some innocent people might be suspected where they otherwise wouldn't be, which is a bad thing even if they are likely exonerated by other evidence, but on the other hand, there is statistically speaking a _greater_ chance that innocent people who might be suspected would be excluded. Put another way, if they have a DNA 'face' and five innocent potential suspects, it's more likely that none of them will match the DNA face than that one of them, by a fluke, will. Of course, it can't be used alone to convict, but still a net positive in my book.

@NoName-de1fn 2 года назад

Maybe they are somewhat closely related.

@JO-bo4yx 2 года назад

@@NoName-de1fn u dont have to be related to look really similar, but still they have the DNA so they cant accuse a innocent

@NoName-de1fn 2 года назад

@@JO-bo4yx But if people look really similar doesn't that mean they are closely related even if the ancestral line split many generations ago?

@blakebeaton8410 2 года назад

I wonder if epigenetics also plays a role. If you were involved in a famine, does that change the expression of important genes and ultimately phenotype?

@pickleyeet8844 2 года назад

Definitely, parental effects and prenatal environment as well

@merrymachiavelli2041 2 года назад

Yes, but it's a separate question whether there are any epigenetic impacts on the relatively small proportion of genes that likely contribute to facial structure. My understanding of the epigenetic impacts of famine are that it mainly effects metabolism, which, unless you are obese or extremally underweight, are unlikely to effect facial features. I'm very keen to see more research into epigenetics, my main question is about how wide-spread epigenetic impacts actually are - are they influential in a handful of cases, or does epigenetic variation have a pervasive effect throughout the genome? Also, a lot of research at the moment doesn't really distinguish between epigenetic changes during an individual's lifetime or in-utero and inherited epigenetics, which seems like a crucial difference.

@blakebeaton8410 2 года назад

@@merrymachiavelli2041 Very cool. You seem more informed than I am, so I will have to defer to you. It seems possible (even very likely) to me (a mere layperson) that things like famine would likely leave major changes in both phenotype and important areas of epigenetics too. I am going off of my knowledge that stress as an infant causes certain important epigenetic changes that are rather dramatic in their expression of behaviour, so major events like famine could perhaps do the same to adults. Thanks for the info, guess I'll have to wait to find out.

@georgeso4364 2 года назад

There was an epigenetic study that showed grandparents that survived a famine had children and grandchildren that lived longer than the average population.

@enigma1863 2 года назад

I would think it would be helpful to get unrelated individuals that look a lot alike and find the similarities in their DNA.

@sammuller9267 2 года назад

So happy to be a part of this!!

@hannahmarchok2186 2 года назад

Me too 😊

@mrwilvlogs4594 2 года назад

Amazing work. Its really happening , unbelievable science.

@justmyedits6596 2 года назад

Imagine your dna shows that you're supposed to look better than now but for some reason, the environment and maybe the foods you ate growing up fucked up your appearance.

@rayzimmermin 2 года назад

this is not really what your DNS says you should look like but just what a computer thinks you look like based off of your DNA and its algorithm that compares your DNA to sample DNA and constructs a face based on the faces provided by the sample DNA

@swastikabhandari6243 2 года назад

My god..... SCIENCE AT ITS BEST! 😄

@mortifer8655 2 года назад

i know right , world is finally ending :)

@naiomichang 2 года назад

@@mortifer8655 😭

@mafia_-vd7bs 2 года назад

Iss mein koi comedy nahi thi

@bubaaaaaaaaa 2 года назад

@@mortifer8655 No, I don't think so, technology just started and it will probably get so much better in the future. As a kid, I’m so excited to see what would happen when I’m a grandma in 2070! (62 by that time think?) Also we, the fact that the human race has been through so much hell and back but still survived also adds up to my opinion

2 года назад

I can't be the only one who never recognizes anyone even from 10 photos. I only recognize a face if i have seen it in person or in a video

@NoName-de1fn 2 года назад

@mogad This can be very confusing sometimes LOL

@tayablackrose29 2 года назад

Same here)) And another weird thing is that I need a lot of time in order to remember a face to be able to close my eyes and see it. It took me almost a year to be able to describe my now ex wife’s face from my memory.

@NavierMasChannel 2 года назад

I don’t ever see how people often identify victims by portraits. They almost never really look like the real person. But if it helps with cold cases I’m all for it. Just confused

@athmaid 2 года назад

1:02 me when I realise that the exam is in two days

@Spydy3000 2 года назад

This could be a way to see how someone looks like when you or your child is grown up

@D4YN3_D43W1H 2 года назад

its awesome we could go this far.

@mistermind8170 2 года назад

Last year I watched a south indian movie in which this tech was used. The movie was pretty good.

@tevaiteacerco969 2 года назад

What movie is it? It sounds awesome.

@kthippie6004 Год назад

Very interesting. :)

@cyankirkpatrick5194 2 года назад

I seen something like this in the wonderful works in the place called wonder werks

@cyankirkpatrick5194 2 года назад

Just think it took days and now just seconds

@professionalcommenter 2 года назад

I looked at what I'm supposed to look like on 23 and me and according to my DNA. I'm supposed to have straight hair and blue eyes. I have green eyes and curly hair.

@MusicMAAD 2 года назад

Watch when they start using this technology to make robots with human faces...

@zb7293 2 года назад

I can see this used in artificial insemination...babies by choice of appearance or other traits.

@xxKEVZxx 2 года назад

Background music just gives me buzzfeed unsolved flashbacks

@carloscarloss6667 2 года назад

And this is how clone are made 😂

@cyankirkpatrick5194 2 года назад

If the condition was right.

@maemilev 2 года назад

*My DNA report said i am most likely obese but i am not!*

@sanu7325 2 года назад

I doubt that

@UHFStation1 Год назад

Not weird at all. Keeping lockets of hair used to be very romantic. Lol.

@shaunm9025 Год назад

they should do this with ape bones.

@kenzielacosta8244 2 года назад

Can I donate any of myself to this cause? My doctor has all my DNA and such put away!

@laurenparajecki1387 2 года назад

Bill Nye the science guy would have fun with this

@mistermind8170 2 года назад

The face changes with age but this video indirectly states that dna too change with age. So, is it true???

@arianeparadis6439 2 года назад

Your DNA does not change. However, the expression of your genes may change over time depending on many factors. Your DNA is a code for proteins and it's proteins in your body which dictate your metabolism, phenotype, hormone levels, etc. Some part of your DNA can be silenced. For instance, women have two X chromosomes but during fetal development one is silenced while one is expressed.

@noahtell1314 2 года назад

Neural network task? DNA -> Photos of people. Get hundreds of thousand of samples and train!

@bobbyavitia 2 года назад

So that would be close to the base line you and any variations were caused by life I guess.

@cyankirkpatrick5194 2 года назад

In my house green eyes are not so a rare my two sisters were green eyes and my two nieces meaning my little sister was green eyed .

@amandasunshine2 7 месяцев назад

Ok but like.. the presence or absence of a cleft chin isn't terribly differentiating, this tech is good enough to identify criminals. So why isn't it? Edit: I get why now. Because it is accurate. The "justice" system is designed intentionally, not accidentally. Features, not flaws.