Phenotype vs Genotype

[Frederick]

Genotype determines phenotype. Autosomal DNA dictates how you look. Period.

Autosomal DNA dictated how you look, how your IQ is, hw your mentality is etc...

If you mix several kind of people, you could get mentality of group A, looks of group B, intelligence of group C.

And wooosh, the connection between looks and the other factors is blown up.

So you could look like a Spanish and have the IQ of a subsaharan and the mentality of a Arab. No problem.

[Frederick]

aDNA is like a hand of cards...

Unmixed peoples look like this:


But for mixed peoples it looks like this:


And each card represents a trait.

Now, the phenotye is the heart Lady...
But he is not 100% heart. A aDNA test would reveal it.

[Agrippa]

Both parents were tested, and with 99% accuracy they were her parents.

For this to happend both parents would have required some very small amounts of african ancestry.

Still it is hard to believe that it is no scam, because some of the traits she has are usually dominant, so they are present in the mulattoes only as long as they are in the phenotype and disappear in the genotype with the other phenotype in consequence.

But of course, very rare and strange recombinations are possible, but this case is really, really strange.

Genotype determines phenotype. Autosomal DNA dictates how you look. Period.

First, the allosomes and mtDNA determine your phenotype too.
Second, there are also environmental influences.

So there is no reason to stress autosomal DNA, better speak of DNA or genes as such and add to that the environmental influences which shape the instructions = phenotype.

[Frederick]

But the Autosomal DNA makes up like 99% of the DNA.

It should be much more imporant.

Y-DNA and mtDNA are a handfull of mutations in wich people differ.

If you want to reconstuct a Dinosaurier or an Neandetalian, you mainly need its aDNA to do so.

combine it with ANY Y-DNA you want and..... get a laboratory made Neandertal.

[Agrippa]

But the Autosomal DNA makes up like 99% of the DNA.

It should be much more imporant.

Of course, but there is no reason to exclude the allosomes and mtDNA, or is there any?

Y-DNA and mtDNA are a handfull of mutations in wich people differ.

If you want to reconstuct a Dinosaurier or an Neandetalian, you mainly need its aDNA to do so.

combine it with ANY Y-DNA you want and..... get a laboratory made Neandertal.

But not exactly the same.

That sentence

Autosomal DNA dictates how you look. Period.

is therefore wrong, because the rest of the DNA and mtDNA influences the phenotype too, as well as environmental factors, including epigenetic.

If you want to be correct, you have to say in the correct way...

[Frederick]

You are right. Envoirement affects looks too. Yes.

Also, there are genes that sleep by default but can be triggered active by envoirement. Others can become inactive by envoirement too.

Its a complicated thing that nobody fully understands so far.

Some go that far to claim, envoirement CANT cause anything that isnt existing in the DNA but can only activate or deactivate traits that are existing in a beeings DNA.

Wich again means, DNA sets the boundaries of your possibilities and DNA alone. But you need the correct envoirement to activate them.

[Agrippa]

You are right. Envoirement affects looks too. Yes.

Also, there are genes that sleep by default but can be triggered active by envoirement. Others can become inactive by envoirement too.

Its a complicated thing that nobody fully understands so far.

Some go that far to claim, envoirement CANT cause anything that isnt existing in the DNA but can only activate or deactivate traits that are existing in a beeings DNA.

Wich again means, DNA sets the boundaries of your possibilities and DNA alone. But you need the correct envoirement to activate them.

I think a simple way to understand that is if looking at muscles.

You can activate additional genetic factors to increase muscle power - or not (epigenetic and prenatal primarily).
You can starve your muscle, or feed it with energy.
You can train and let them grow or not.
You can train it in different ways if you train it etc.
Just look at people which being paralysed or in space - how fast the muscle can degenerate and that even in late age, after the major developments being concluded.

So even if you look at such a "simple" thing like a muscle, there are a lot of options from the geno- to the phenotype, even without looking at how complicated the processes in reality are and simplifying things drastically...

[dogwolf]

When I was a kid, I used to fork that kind of stuff into a manure spreader. Race has absolutely zero to do with intelligence, morals, or anything else - race is genetic response to the environment, and nothing more.

[BeerBaron]

When I was a kid, I used to fork that kind of stuff into a manure spreader. Race has absolutely zero to do with intelligence, morals, or anything else - race is genetic response to the environment, and nothing more.

Plenty of studies have been done that refute your claim. As for race, scientists are still uncertain if environment was the only cause, this is also basing everything on the "out of africa" theory.

[Ibericus]

You are right. Envoirement affects looks too. Yes.

Also, there are genes that sleep by default but can be triggered active by envoirement. Others can become inactive by envoirement too.

Its a complicated thing that nobody fully understands so far.

Some go that far to claim, envoirement CANT cause anything that isnt existing in the DNA but can only activate or deactivate traits that are existing in a beeings DNA.

Wich again means, DNA sets the boundaries of your possibilities and DNA alone. But you need the correct envoirement to activate them.

There also genes that manifestate in descendants or when recombined, you can be black-haired but carry the genes for red-hairism.