DNA+Fingerprint+Homework-SF

11. C 12. A 13. A 14. C 15. D 16. Iodine combines with carbohydrates in latent print 17.a impression left on a surface that consists of patterns made by the ridges on a finger/fingerprint. 18. Chloride from salt in perspiration combines with silver nitrate to form silver chloride. 19. No method has been discovered to permanently alter fingerprints however people have been able to temporarily get rid or tinker with the fingerprints such as the pineapple farm workers in Cuba who are exposed to chemicals and acids in pineapples that alter or get rid of them temporarily. The fingerprints grow back once they are no longer exposed to the chemicals and acids, and grow back even stronger. 20. a) Reacts with amino acids (proteins) found in sweat, and this occurs when you exercise. b) reacts with the Amino Acids. c) Chloride from salt in perspiration combines with silver nitrate to form silver chloride. d) Iodine combines with carbohydrates in latent print