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When there is every thing same from their genes to their phenotype so then why they don't have same fingerprints?

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This question is a near-duplicate of biology.stackexchange.com/questions/1054/… –  LanceLafontaine Aug 10 '14 at 17:00
This is not a well researched question –  caseyr547 Aug 11 '14 at 12:34

1 Answer 1

Identical twins have, despite the name, neither identic fingerprints nor identic genetic fingerprints.

Fingerprints: According to the papers listed below the fingerprints show higher similarities (the "structure" is the same), but they can be distinguished and are not the same.

Genetic Fingerprint: Although identic (or monozygotic) twins share the same DNA, they are not the same and can still be distinguished with a DNA fingerprint, if enough regions are analyzed. The difference comes from small mutations (so called "single nucleotide polymorphisms", one base mutations) which occur in each of us individually. The other difference comes from epigenetic modifications of our genome (basically adding methyl groups to our DNA) which are also not the same between identic twins (there is an interesting video on this on Youtube). However, when using standard forensic kits it is usually not possible to discriminate between identical twins. Differences are detected with whole genome sequencing.

Have a look at these publications:

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