Genotype vs Phenotpe - when your Phenotype does not Match with your claimed Ancestry

[Saad2016]

Most phenotypes (physical characteristics) are influenced by both your genotype and the unique circumstances in which you have lived your life, including everything that has ever happened to you. We often refer to these two inputs as “nature,” the unique genome you carry, and “nurture,” the environment in which you have lived your life.

In India and Pakistan, genetic diversity is very vast, people claim to have many foreign ancestry claims some claim to have arab lineage some turk some mongol and some Aryan and Sycthian etc.

My curiosity is ; if that is the case then there has to be a direct relation between phenotype and genotype. To sum/explain up my argument a person who claims to be of chinsese ancestry have to look like a Chinese and if he doesn't then his claim is dubious. Looking in the mirror is one of the best proof of your ancestry , which many south Asians shy away from. Phenotype is greatly impacted by your genotype and does not and cannot evolve in isolation of it. A Chinese man cannot have an arab phenotype and like versa.



Do u guys agree? I am sorry if I have offended anybody. The purpose is to have a healthy debate and not cause an offense.

[MonkeyDLuffy]

It is a very good topic if we talk in calm manner. In my opinion since SAs are so mixed, the genetic inheritance is very random. That's why you've sibling who can look very different in terms of features and skin tone.

[Saad2016]

It is a very good topic if we talk in calm manner. In my opinion since SAs are so mixed, the genetic inheritance is very random. That's why you've sibling who can look very different in terms of features and skin tone.

Thank you for your participation. I agree that we have sibling who tend to be a lighter or darker skin tone in India/Pakistan. However, a strange tendency in south Asian exists that compel many to find their ancestors outside of region. For instance in my country of origin i.e. Pakistan , you would find many clans/tribes that claim to be arabs, turks and so on but when I look at their phenotype they don't even look a bit like their claimed ancestors and if the current populations of arabia come to know that we have these people in south Asian who claim to be from them...they would probably laugh at them aloud. Same goes with castes systems. I find this term "Low caste" very derogatory but people use it in south Asian as if they are a different genetic stock, when scientifically speaking that's not the case. The genepool is the same but due to social status etc etc. they started these caste based pseudo genealogy which is not solid at all!

[poi]

Phenotypes can overlap despite no (recent) genetic ties. It is like looking at the shape/color/texture of the food and thinking they taste the same and have the same same nutritional properties. Chances are that two similar looking food taste the tame, but there is also a chance that they do not at all.

For example, South Asians and Arabs, do not share recent ancestry. In genetic tests, Arabs and South Asians are "distinct". The most recent ancestry probably diverged 10,000+ years ago. Yet, many South Asians are easily confused for Arabs and vice versa. That alone should tell us that phenotype is very subjective. If we go down this rabbit hole, we're going to have to open up 19th century literature to figure out "Races of Man" and start posting "plates" of side profiles and measurement of cranial index.

[Censored]

Phenotypes can overlap despite no (recent) genetic ties. It is like looking at the shape/color/texture of the food and thinking they taste the same and have the same same nutritional properties. Chances are that two similar looking food taste the tame, but there is also a chance that they do not at all.

For example, South Asians and Arabs, do not share recent ancestry. In genetic tests, Arabs and South Asians are "distinct". The most recent ancestry probably diverged 10,000+ years ago. Yet, many South Asians are easily confused for Arabs and vice versa. That alone should tell us that phenotype is very subjective. If we go down this rabbit hole, we're going to have to open up 19th century literature to figure out "Races of Man" and start posting "plates" of side profiles and measurement of cranial index.

There is certainly some overlap although not as much as some people think. Peninsular Arabs can look quite a bit like some north Indians as can some Persians. Also, the similarity seems to be pretty limited to the males for some reason. Our women always look very different from theirs. No idea why this is.

[thejkhan]

Same goes with castes systems. I find this term "Low caste" very derogatory but people use it in south Asian as if they are a different genetic stock, when scientifically speaking that's not the case. The genepool is the same but due to social status ...

Sadly, this is simply not true. DNA tests in recent times have proved there is correlation between caste status and the proportion of ancestry from particular ancestral groups.

[poi]

There is certainly some overlap although not as much as some people think. Peninsular Arabs can look quite a bit like some north Indians as can some Persians. Also, the similarity seems to be pretty limited to the males for some reason. Our women always look very different from theirs. No idea why this is.

Females are much more inclined to modify their appearances than males. Females in general wear massive eyeliners, many even put on fake eyelashes, most definitely fix up their eyebrows, most put on lipstick and many wear foundation and makeup.

And, no, I did not just go through my wife's makeup kit lol

[Saad2016]

Sadly, this is simply not true. DNA tests in recent times have proved there is correlation between caste status and the proportion of ancestry from particular ancestral groups.

this table proves it otherwise, almost all ethnic groupos/clans are mixed check this out :

https://en.wikipedia.org/wiki/Y-DNA_..._of_South_Asia

[Sapporo]

this table proves it otherwise, almost all ethnic groupos/clans are mixed check this out :

https://en.wikipedia.org/wiki/Y-DNA_..._of_South_Asia

He's referring to autosomal ancestry. Not Y-DNA. Also, "lower castes" tend to have different proportions of West Eurasian Y-DNA and mt-DNA than "upper castes."

[Censored]

Females are much more inclined to modify their appearances than males. Females in general wear massive eyeliners, many even put on fake eyelashes, most definitely fix up their eyebrows, most put on lipstick and many wear foundation and makeup.

And, no, I did not just go through my wife's makeup kit lol

Possible. Middle Eastern women have a unique make up style. Also we tend to pay more attention to minute details in females compared to other males.