title: [Diffraction from the alternating helix].
abstract: Formula are obtained for the diffraction on fibrous biopolymers with strands alternating between segments of right- and left-handed helix. Additional set of reflections having definite positions and relative intensities is shown to be characteristic of the X-ray pattern involved. As considered by the proposed method side-by-side model of DNA may be refused on the basis of diffraction pattern geometry only.
mesh_terms: D004247:DNA; D008433:Mathematics; D008957:Models, Genetic; D009690:Nucleic Acid Conformation
chemical_list: D004247:DNA
vernacular_title: Difraktsiia ot znakoperemennoĭ spirali.