Strands of DNA used to perform calculations has mastered the game tic-tac-toe. MAYA-II, developed at Columbia University and the University of New Mexico in the US, uses a system of DNA logic gates to calculate its moves for tic-tac-toe.
A DNA logic gate consists of a strand of DNA which binds to another specific input sequence. This binding causes a region of the strand to work as an enzyme, modifying yet another short DNA sequence into an output string.Scientists have already developed DNA computers capable of various similar simple calculations. But the researchers behind MAYA-II say their design should prove particularly useful for exploring ways to identify the genetic markers associated with certain diseases.
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