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Question

Does twins have same voice and same fingerprints? Why?☺

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Solution

Not in all cases, twins may have or may not have same voice.

No. They come from the same fertilized egg and share the same genetic blueprint. To a standard DNA test, they are indistinguishable. But any forensics expert will tell you that there is at least one surefire way to tell them apart : identical twins do not have matching fingerprints.

Genetics helps determine the general patterns on a fingertip, which appear as arches, loops and whorls. An individual finger can have just one of these patterns or a mixture of them.

While a fetus is developing, the ridges along these patterns are influenced by a number of factors, including bone growth, pressures within the womb and contact with amniotic fluid.

The patterns on a person's fingers, palms and feet are fully formed by roughly the fifth month of pregnancy.

They stay the same throughout life, barring any changes brought on by severe mutilation or a skin disease.


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