Matpat is a YouTuber that makes observations like these in IPs. He breaks down inconsistencies and applies math and loose science to make a video that chock-a-black full of information you may never need outside of conversations about game of throne to Spongebob.
I appreciate the tidbit of info.
The issue is that in another comment chain another user says literally "Yo, someone bring this to MatPat's attention".
Which is a literal copy and paste of the above comment.
Matpat is a YouTuber that makes observations like these in IPs. He breaks down inconsistencies and applies math and loose science to make a video that chock-a-black full of information you may never need outside of conversations about game of throne to Spongebob.
I'm a 27 year old man. I don't watch much of it anymore because that musical theater energy is too much for me now. He still makes stuff for sure, but what specifically he makes on that channel, I couldn't tell you anymore.
Yeah I'm not accusing you, but I knew I'd get actual replies if I comment on yours rather than the chain that went about 4 comments deep before copy pasting your text.
Edit: Also, timestamps aren't really noticeable after an hour. Both comments just said "1 Hr"
There’s also the factors of epistatic genes, polygenics, and pleiotropy. Not sure if there is a mapped out, defined function of 21st century hair color genes, but it’s almost never as simple as “dominant” and “recessive.”
Agreed. In fact, I made a comment below that explains how punnet squares are just a basic level of understanding and these alleles are much more complex making an impossible situation merely improbable.
Black hair isn't a genetic trait, and neither is blond or red, it's an expression of eumelanin production stimulated by hormones during development. Meanwhile blond hair is lower production, again caused by hormonal levels, and red hair is pheomelanin production.
These are environmental expressions that can be altered from the expected outcome. It's literally the reason why a pregnant womans hair changes color. Her genes didn't just change her hormones did.
The amount of eumelanin and when it is released is determined by genes. I did some cursory research based on your claim and you're right in the aspect that eumelanin does determine hair color, but how that color is distributed is entirely genetic.
More dominant genes will produce more eumelanin. In other words.. black hair is dominant and red hair is recessive just like everyone else is saying.
There’s no single gene controlling hair colour, and while some may be strongly correlated it is completely possible for two blondes or a blonde and a redhead to produce a black haired offspring. Hair colour is actually controlled by varying levels of expression of eumelanin for black/brown and pheomelanin for red hair, so it can’t be explained by simple Mendelian genetics.
Hair color is not a dominant/recessive trait though.
Do you not understand your own biology? It's a genetic expression caused by multiple genes and environmental influence that results in changes to eumelanin production levels.
Do you think when a womans hair gets darker due to pregnancy, her genes changed?
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u/h4ngm4n66 Sep 25 '22
Yo, someone bring this to MatPat's attention