- helix axis
- ось спирали (ДНК)
Англо-русский словарь по иммунологии и иммуногенетике. — М.: Русский язык. Сучков С. В. Под ред. акад. Р. В. Петрова. 1990.
helix axis
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Helix — This article is about the shape. For other uses, see Helix (disambiguation). The helix (cos t, sin t, t) from t = 0 to 4π with arrowheads showing direction of increasing t … Wikipedia
Helix angle — In mechanical engineering, a helix angle is the angle between any helix and an axial line on its right, circular cylinder or cone. [ANSI/AGMA. ANSI/AGMA Standards 1012 G05 Gear Nomenclature, Definitions of Terms with Symbols. American Gear… … Wikipedia
Helix Nebula — For the different but similarly named nebula, see Double Helix Nebula. Eye of God redirects here. For other uses, see Eye of God (disambiguation). Helix Nebula Infrared image of the Helix Nebula, taken by the Spitzer space telescope, 2007 … Wikipedia
helix — 1. [NA] The margin of the auricle; a folded rim of cartilage forming the upper part of the anterior, the superior, and the greater part of the posterior edges of the auricle. 2. A line in the shape of a coil (or a spring, or the threads on a bo … Medical dictionary
helix — n. (pl. helices) 1 a spiral curve (like a corkscrew) or a coiled curve (like a watch spring). 2 Geom. a curve that cuts a line on a solid cone or cylinder, at a constant angle with the axis. 3 Archit. a spiral ornament. 4 Anat. the rim of the… … Useful english dictionary
Helix — n. (pl. helices) 1 a spiral curve (like a corkscrew) or a coiled curve (like a watch spring). 2 Geom. a curve that cuts a line on a solid cone or cylinder, at a constant angle with the axis. 3 Archit. a spiral ornament. 4 Anat. the rim of the… … Useful english dictionary
helix — noun /ˈhiːlɪks/ a) A curve on the surface of a cylinder or cone such that its angle to a plane perpendicular to the axis is constant; the three dimensional curve seen in a screw or a … Wiktionary
Nucleic acid double helix — Double helix redirects here. For other uses, see Double helix (disambiguation). Two complementary regions of nucleic acid molecules will bind and form a double helical structure held together by base pairs. In molecular biology, the term double… … Wikipedia
Alpha helix — A common motif in the secondary structure of proteins, the alpha helix (α helix) is a right handed coiled conformation, resembling a spring, in which every backbone N H group donates a hydrogen bond to the backbone C=O group of the amino acid… … Wikipedia
Double helix (disambiguation) — In geometry, a double helix (plural double helices) is a pair of congruent geometrical helices with the same axis, differing by a translation along the axis. The term is most often used in reference to the nucleic acid double helix, the dominant… … Wikipedia
Screw axis — The screw axis (helical axis or twist axis) of an object is a parameter for describing simultaneous rotation and translation components of that object.The axis is a directed line in space, along which a translation may occur, and about which… … Wikipedia
