Why does every person have different fingerprints?

Fingerprints

It is amazing but true that no two people in the entire world can have exactly same fingerprints. Even  twin brothers or the two very similar looking persons cannot have same fingerprints. This fact is very useful in solving mysteries and detecting crimes and catching  thieves.


   The human skin consists of two layer of tissues. The  inner layer is thick is and is called corium. The outer layer is a thin membrane and is called epidermis. In  cold blooded animal, these two layers of skin fit smoothly one upon the other. There are no ridges or grooves to make patterns. But  in human beings, there are ridges which form certain patterns and these patterns are different in every different person.



Edward Henry
   Sir Edward Henry,ab Englishman, first developed the system of classify the fingerprints by carefully studying different patterns made by the fingerprints of the different persons. Even today, the same basic system of classifying fingerprints issued everywhere.


The ridges on human fingers can be divided into this basic patterns- loops, Central pocket loops, double loops arches, tented arches,
whorls and accidentals. By  counting the ridges between fixed points in the pattern, each of the ten fingers can be classified into a definite group. The chances that two people will have the same pattern on just one finger are 1 in 24 million!

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