Scientists build a better DNA molecule

Building faultless objects from faulty components may seem like alchemy. Yet scientists from the Weizmann Institute`s Computer Science and Applied Mathematics, and Biological Chemistry Departments have achieved just that, using a mathematical concept called recursion. 'We all use recursion, intuitively, to compose and comprehend sentences like ‘the dog that chases the cat that bit the mouse that ate the cheese that the man dropped is black,`' says Prof. Ehud Shapiro.

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