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View Full Version : The genotype doesn't always reflect in your phenotype



Seya
10-28-2017, 03:05 PM
i find that very interesting. some more northern shifted individuals are darker then some of the southern ones. why? even the 23andme have a section called "Traits Reports". in there u get predictions for your skin, hair, eye colors and, although, u plot somewhere northern then other individuals they know u have darker features. why is that? i'll give u an example:
this girl
https://i.imgur.com/cITu4mO.jpg
https://i.imgur.com/yIdZ6Xc.jpg
she's 99.4% European, 0.4% east asian
balkan 59.0%
italian 5.9%
Broadly Southern European 14.9%
Eastern European 6.8%
Northwestern European 3.2%
Broadly European 9.5%

and this is her brother..they hardly even resemble each other
https://i.imgur.com/0u5x8Mw.jpg
(this girl is not his sister)

Crimson Winds
10-22-2018, 01:29 PM
I have the exact same situation with my sister. I regularly told her that she is adopted.

Gründig
10-22-2018, 01:36 PM
Learning about, talking about and classifying European phenotypes is fun and interesting, but it shouldn't be taken TOO seriously.

Mr. Anybody
10-22-2018, 02:09 PM
If she is 99.4% European , I m 100 % European..

so yes,genotype=/=phenotype

Mingle
10-22-2018, 02:12 PM
Her GEDmatch result would be more indicative of her genotype as "European" is an extremely broad category that includes non-European (i.e. West Asian) DNA. Its possible she has more West Asian and Med than the other guy. But I do agree anyways that genotype (on DNA tests specifically) and phenotype may not always be the same. That still doesn't change the fact there is a heavy correlation between the two.

lameduck
10-22-2018, 02:14 PM
Genotype does correlate with Phenotype on group level but on individual level humans are very diverse.

Not a Cop
10-22-2018, 02:21 PM
Genotype=Phenotype. Phenotype is just a physical expression of your genotype.

So why don't people all look the same? Because all modern Euro ethnic groups are of mixed origin some are less like Basques or Sardinians, some are more like Romanians.

Different ethnic groups brought different looks with them and so the gene pool became more diverse, however genes that are responsible for your look are drop in the ocean compared to your overall genome, so there are light Romanians and Swarthy Estonians f.e.

Peterski
10-22-2018, 02:47 PM
Genotype=Phenotype.

http://www.ihh.kvl.dk/htm/kc/popgen/genetics/1/1/sld009.htm

rein
10-22-2018, 03:01 PM
I guess it depends from which group she inherited certain genes for skin tone and facial features.

Magnet
10-22-2018, 03:39 PM
Their grandfather is "black" (probably mulatto in reality) and this is how different they look:

https://pbs.twimg.com/media/BrdzvOZCEAAjr3y.jpg

Token
10-22-2018, 03:54 PM
It depends on what is your personal definition of the so wrongly used term 'phenotype'. You can spot two brothers among a crowd using basic craniometry techniques and we are not far from being able to reconstruct a individual's face solely by genome sequencing. Phenotype, at least when it comes to cranial morphology, does correspond to your genotype.