all cells are differentiated from the same genetic information. Your hair follicles are differentiated in the same way that your eyeballs are different from skin cells. Same genetic information, different expression.
As to why public hair is coarse, I beleive its because it reduces friction better and is more resilient to tangling. Pretty important to avoid infections and injuries.
Aneverydayuser t1_iy1hskf wrote
Reply to eli5: Different body hairs grows differently by kenito225
all cells are differentiated from the same genetic information. Your hair follicles are differentiated in the same way that your eyeballs are different from skin cells. Same genetic information, different expression.
As to why public hair is coarse, I beleive its because it reduces friction better and is more resilient to tangling. Pretty important to avoid infections and injuries.