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Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?

To: Solon who wrote (11696)	12/30/2010 5:11:25 PM
From: Jacques Chitte	Read Replies (1) \| Respond to of 69300

DNA fingerprinting relies on the use of special enzymes called restriction endonucleases. These break DNA double strands where specific sequences, typically four or six units long, occur. The result is a soup of DNA fragments that have characteristic mobilities on electrophoretic gels, providing a unique "Rorschach blot" pattern depending on where the DNA was sourced. The technique is sensitive enough to unambiguously identify individuals, allowing it to be the courtroom tool that it is. Sequencing is used to determine the actual nucleotide sequence (and thereby both the full molecular structure and the raw encoding) of a DNA fragment It is a very expensive and difficult procedure that relies on elaborate sequencing machines. The human genome project bears some similarities to the Manhattan project in its size, complexity and hunger for high tech. Fingerprinting can be done in an ordinary laboratory with "generic" molecular biology equipment.