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Branching in DNA Computation
Branching in DNA Computation

... Works in parallel checking all the solutions at once If the solution is not valid (the variables in it contradict each other and thus the clause can not be resolved) then folds on itself An if statement acts on each clause at the same time! Disadvantages: – high error rates (esp. with increase of va ...
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... DNA that develop throughout a person's life. In contrast to hereditary mutations, somatic mutations arise in the DNA of individual cells; the genetic errors are passed only to direct descendants of those cells. Mutations are often the result of errors that crop up during cell division, when the cell ...
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Biology 1 Exam III F'04test.doc
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DNA History - Biology Junction
DNA History - Biology Junction

...  Watson & Crick (1953)  Meselson & Stahl (1958) ...
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DNA supercoil



DNA supercoiling refers to the over- or under-winding of a DNA strand, and is an expression of the strain on that strand. Supercoiling is important in a number of biological processes, such as compacting DNA. Additionally, certain enzymes such as topoisomerases are able to change DNA topology to facilitate functions such as DNA replication or transcription. Mathematical expressions are used to describe supercoiling by comparing different coiled states to relaxed B-form DNA.As a general rule, the DNA of most organisms is negatively supercoiled.
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