%0 Journal Article %T Resonant Absorption of Microwaves by Macromolecules %A Boris L. Ikhlov %J Open Access Library Journal %V 9 %N 3 %P 1-10 %@ 2333-9721 %D 2022 %I Open Access Library %R 10.4236/oalib.1108489 %X The objective of the study is to detect the resonant absorption of an ultrahigh-frequency electromagnetic field in the centimeter range by DNA molecules at a frequency corresponding to the natural frequency of torsional vibrations of the DNA helix. Instead of DNA solution, cultures of various bacteria containing DNA were used, for whose DNA spirals the resonant frequencies of torsional vibrations were calculated. The cultures were placed in test tubes or cuvette and irradiated by microwave generator. Theoretical analysis of the reaction of DNA to external ultrahigh-frequency radiation was carried out, including taking into account the environment and during replication with the formation of replicative forks, the resonant frequencies of DNA of three types of bacteria were determined. Peak absorption of microwave electromagnetic field by bacterial cultures was detected on calculated frequencies corresponding to the natural frequencies of torsional vibrations of DNA helices of these types of bacteria. %K Torsional Oscillations %K Power Flux Density %K Electromagnetic Field %K Microwaves %U http://www.oalib.com/paper/6770702