Body: Fingerprints form already around 17 weeks of pregnancy…

Question

Did you know? Fingerprints form already around 17 weeks of pregnancy — before you're born. They're determined by the movements of the foetus against the womb wall. That's why fingerprints are not genetically identical between identical twins, despite all their other DNA being the same.

Accepted Answer

Fingerprints form already around 17 weeks of pregnancy — before you're born. They're determined by the movements of the foetus against the womb wall. That's why fingerprints are not genetically identical between identical twins, despite all their other DNA being the same.

Vingerafdrukken vormen al rond 17 weken zwangerschap — vóór je geboren bent. Ze worden bepaald door de bewegingen van je foetus tegen de baarmoeder-wand. Daarom zijn vingerafdrukken niet genetisch identiek bij identieke tweelingen, ondanks dat al hun andere DNA hetzelfde is.

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