Why are our fingerprints unique? (Even identical twins are different!)
May 16, 2024
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Surprisingly Even the fingerprints of babies who share the same womb are not the same. Apparently, things get pretty complicated when it comes to fingerprints. Without further ado
Surprisingly Even the fingerprints of babies who share the same womb are not the same. Apparently, things get pretty complicated when it comes to fingerprints.
Without further ado Let’s uncover the curtains of mystery behind fingerprints.
To understand this difference, let’s first look at how fingerprints are formed.
In the early stages of fetal development, the volar pad, that is, the fleshy part under the skin of each finger, becomes Stem cell tissue nodules develop. Volar cushion; Whether it is large, small, sideways or bumpy determines the main shape of the fingerprint.
These shapes are also called arcs, spirals, loops or double-loop spirals. In addition, because the shape and size of your volar pad are partly genetic, you have many relatives and many are identical twins. It has the same main shapes on each finger.
However, this does not mean that your fingerprints and DNA are the same It not only plays a role in the uniqueness of the fingerprint. Because the embryonic skin above the volar pad has multiple layers of cells that all grow at different rates.
As the inner layer grows, the middle layer bends, creating ridges in the top layer.
The lines called ridges are mainly seen on the growing finger. It happens in parallel with the three areas that exert the most pressure. These three regions; near the nail, near the crease at the first joint, and above the volar pad.
As these lines develop, they sometimes collide with each other and as a result A blockage or split occurs.
Where exactly these ridge lines meet on the finger and what shapes they take is determined by a number of factors.
These factors include the way nerves and capillaries grow in the layer beneath the skin, how the fluid pressure in the uterus changes and even the direction the finger is pointed in relation to gravity.
A person prints each fingerprint in a different location. has about 50 different lines And there are more than a trillion different possibilities for each fingerprint.
The situation is no different even for babies growing in the same womb. So each of your fingerprints, It is one of a kind and unique.
Sources: Science ABC, MinuteEarth
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Ashley Johnson is a science writer for “Div Bracket”. With a background in the natural sciences and a passion for exploring the mysteries of the universe, she provides in-depth coverage of the latest scientific developments.