If we make skin and muscle cells when we heal cuts and heal/generate bones after breaking them, why wouldn’t we be able to grow a finger if one is cut off?

Question

If we make skin and muscle cells when we heal cuts and heal/generate bones after breaking them, why wouldn’t we be able to grow a finger if one is cut off?

In: 7967

Answer 1

When your body is first developing, your cells have access to all of the blueprints for every part of the body. Before exiting the womb, your cells essentially lock most of these blueprints up and lose the key. They keep a couple blueprints for healing, but none for complete regeneration.