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summary about fingerprints

summary about fingerprints - cell layer of the skin between...

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Chien Chiu Hsiung Professor Marra CC3.32 Geology October 8, 2009 Title: Twins and Fingerprints By: C. Claiborne Ray The article is about why do identical twins have different fingerprints? And why do we have fingerprints? Researchers have found that there is a high correlation of loops, whorls, and ridges on identical fingerprints. Although twins are developed in one zygote, the positions of the fetus inside the womb can make a difference in the twin’s fingerprints. The study explains that at the critical stage of development, ridges are form as compressive stresses develop in the dermal
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Unformatted text preview: cell layer of the skin, between the epidermis and the subcutaneous tissue. Regular ridges continue to form to relieve the stress. The study continues discussing how ridges are parallel where the skin is flat and on the pads and the ridges form along the line of equal stress. Then ridges form whorls and pads that have largely regressed which create simple arch pattern. Finally, the place where ridge formation and regression overlap, a loop pattern develops as well....
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