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Details of The biological computer
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The biological computer has been devised in the 1987 from the biologist Thomas Head, and it is based on the ability to the double propeller of the Dna esponenzialmente to duplicate by means of a process of decomposition and copiatura guided from enzymes. The alphabet to four letters (To, G, C, T) in which the genetic information it comes written in the Dna is more than sufficient to the ends of the computazione, that it only has need of an alphabet to two letters (Or and 1).
The operations of acknowledgment, incollatura and shortening carried out from particular enzymes (endonucleasi, ligasi and essonucleasi) on the chains of Dna constitute the analogous one of the basic operations of the calculation, and correspond literally to the costrutti basic of the language of Lisp programming (car, cons and cdr). It does not astonish that by means of the manipulation of stringhe of Dna they can be carried out, in theory, all the calculations that a normal computer can carry out. 
Leonard Aldeman In the 1994, Leonard Aldeman it has demonstrated that in this way special cases of a problem can be resolved in efficient way that, like already the decomposition in factors, today is not known like resolving in efficient way with an electronic computer. The obstacles to the construction of a programmabile biological computer are similar to those for the construction of a quantistico computer: on one side, the development of a technology that allows to codify without errors the information in the Dna; from the other side, the control of the chemical and thermodynamic factors that disturb the behavior of great molecule systems.
Category: Bio-medical
Type: Glossaries and Dictionaries
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