The inference via DNA computing

DNA computing is a new paradigm to perform calculations using genetic engineering technology. The paper presents the overall research direction from which molecular inference and expert systems are emerging. It provides an introduction to the subject matter and a general description of the problems involved. This includes selected methods of knowledge representation by DNA strands, strategies of the inference mechanism, concept of the inference engine based on circular DNA molecules, particularly derived from plasmids, practical experience in DNA inference engine implementation, and discussion of the experimental results. The approach allows evaluating logical statements and drawing inferences for generating other statements via DNA computing