fingerprint+homework-+rebecca

11.c 12.a 13.a 14.c 15.d 16. to determine the take of ridge count ridges from core to delta 17.What is a fingerprint? A fingerprint is "an impression left on any surface that consists of patterns made by the ridges on a finger. 18. how are finger prints formed?" " the creation of fingerprints happens in the basal layer, a special layer within the epidermis where new skin cells are produced". 19. is it possible to alter fingerprints?- no 20. a.ninhydrine- -reacts with amino acids (proteins) b.cyanoclcrylate: this will react with amino acids c.silver nitrate- chloride from salt in perspiration on the print combines with silver nitrate to form silver chloride. d.iodine fuming- iodine combines with carbohydrates in latent print.