Shocking Facts: Their Fingerprints Are Partially Formed By Their Enviroment
Shocking Facts: Their Fingerprints Are Partially Formed by Their Enviroment
By the fifth month of pregnancy, the patterns on a fetus’ fingers are fully formed and stay the same throughout life (unless there’s severe mutilation). Genetics definitely help to determine the general patterns of your fingerprints, as you might have guessed, but they’re not the complete story.
Like most other traits, both physical and mental, the environment plays a role. While a fetus is developing bone growth, pressures in the womb and even the length of the umbilical cord can influence the ridges of fingerprints.
You may be shocked to know that because of these reasons, identical twins don’t even have the same fingerprints (despite popular belief)!
In fact, they also differ genetically thanks to epigenetic changes, which are chemical modifications that change the way genes are expressed.