Why do identical twins have different fingerprints?

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Anonymous User asked 14-Dec-2017 in Health by Anonymous User
Why do identical twins have different fingerprints?

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Anonymous User answered 18-Dec-2017 by Anonymous User
Fingerprints are not entirely genetically determined but are influenced by changes in micro-environments. Take a glass of water and drip in a drop of food coloring or ink. Rinse the glass out, fill it exactly as before and drip again from the same height. The two resulting swirls of color will be similar - but not identical.
Why do identical twins have different fingerprints?
However the twin kids have the similar DNA, but they identically don’t look exactly the same as each and every aspect of a human body appearance is rigidly determined by our genes.

Fingerprints are formed semi-randomly and are formed in several steps as the fetus develops in the womb and are affected by such things as chance fluctuations of hormone levels.
So prior to that the pattern of freckles and moles on the skin is caused by random mutations and will vary between identical twins.

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