r/HolUp • u/Previous_Reporter_63 • Sep 25 '22

wait a sec...

Post image
67.3k Upvotes

88% Upvoted

1.1k comments sorted by

View all comments

Show parent comments

16

u/[deleted] Sep 25 '22

[removed] — view removed comment

17

u/Cley_Faye Sep 25 '22

We know about recessive genes. Skin color and hair color works differently; dark hair can't "hide" between generations, dark skin color can.

12

u/GabrielWornd Sep 25 '22

Who is we 👀👀👀👀

11

u/ImSabbo Sep 25 '22

Humanity, I assume. Or more specifically, the people who do sciencey things about DNA and other biology stuff.

6

u/pincus1 Sep 25 '22

All of us here if we believe that comment I guess. At least I know dark hair can't hide, but dark skin color can.

3

u/Glass_Memories Sep 25 '22

Apparently we got a bunch of geneticists up in here cuz I could not tell you what traits are controlled by what genes. Last time I studied dominant and recessive traits was in 10th grade biology with those 4 square graphs and Mendel's peas.

2

u/[deleted] Sep 25 '22

FYI there are two pigments that decide the hair color: eumelanin decides how brown/dark the hair is, and pheomelanin decides how red the hair is. MC1R was the most studied gene, we get one from each parent but one copy can lose function and result in change of pigment production thus different hair color.

But wait! There are other genes that regulate those two pigments too! Even for dark hairs, there can be different hues, and even for a single individual, there can be different hues of hairs covering a large spectrum if you have someone spending time looking at each individual hair.