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Comparison of molecular diagrams of Hoogsteen DNA base pair and the Watson-Crick DNA base pairs referenced as "A/T pairs Hoogsteen, W.Crick"

Produced by the MRC Biophysics Research Unit/Department of Biophysics, King's College London.

King's College London Department of Biophysics

KCL Department of Biophysics: glass and acetate slides ('quarter plates', 'whole plates' and 'half plates') relating to the work of the Medical Research Council (MRC) Biophysics Research Unit (KCL Department of Biophysics from 1964)

KCL Department of Biophysics: quarter plate series: slides of images relating to research conducted in the Biophysics Unit and subsequently Department of Biophysics

Photographic image referenced as a "Reflecting Microscope"

Photographic image referenced as "Reflecting Microscope"

Graph referenced as "Absorption spectra of purines, pyrimidines and nucleic acids"

Graph referenced as "Microphotometer recordings of thymine spectrum at room temperature and at 90 k [Kelvin]"

Schematic diagram referenced as "Absorption cell for low temperature studies"

Schematic diagram referenced as "Ultraviolet achromatic refraction objective 1.24 NA [numerical aperture]"

Diagram referenced as "Middle piece and tail of a ram spermatozoa"

Diagram referenced as "Head structure of ram spermatozoa"

Diagram referenced as "Circular scales for angle measurements"

Diagram referenced as "Circular dial 1-100"

Printed diagram referenced as "Generalized drawing of mammalian sperm"

Printed diagram captioned as "Drawings of different mammalian sperms"

Printed diagram of a transverse section of seminiferous tubule in a mammal referenced as "Mammalian sperm heads"

Printed diagram captioned as "Drawing of the stages of spermatogenesis in mammals"

Printed diagram captioned as "Drawing of the stages of spermatogenesis in guinea pigs"

Printed graph referenced as "Ethyl-alcohol in CCl4 [carbon chloride] layer 1mm (1-3) and 5mm (4-6)"

Printed graph referenced as "absorption spectrum of methyl alcohol in carbon tetrachloride solutions"

Table captioned as "Fine structure in ultra-violet absorption spectra of some purines, pyrimidines, amino acids, nucleosides etc. "

Microscopic image of cellular structure [no reference]

Ultra-violet absorption spectra image and path length recordings referenced as "Ultra-violet absorption spectra of para and ortho substituted phenols"

Ultra-violet absorption spectra and path length recordings referenced as "Ultra-violet absorption spectra of pyridine bases"

Ultra-violet absorption spectra image and path length recordings referenced as "The effect on the ultra-violet absorption spectrum of substituting an octyl group in the othro position to a hydroxyl group"

Microscope image referenced as "Effect of ultrasonics upon mitosis sticky chromosome bridges"

Graph showing ultra-violet absorption curves relating to the effect of ultrasonics on nucleic acids referenced as "Effect of ultrasonics in nucleic acids. U.V. Absorption curves"

Copy of J M M Pinkerton's paper, "On the Pulse Method of Measuring Ultrasonic Absorption in Liquids" in Proceedings of the Physical Society, Section B, Volume 62, Number 5, 1949.

Series of microscopic images of Tobacco Mosaic Virus (TMV) crystals referenced as "TMV crystals"

Photograph referenced as "Mechanical parts of reflecting objective"

Microscope image referenced as "Autoradiography of newt cells"

Copy of a photographic print referenced as "Accelerated flow method for rapid reactions"

Copy of a photographic print referenced as "Accelerated flow apparatus and amplifier"

Copy of a photographic print referenced as "Accelerated flow apparatus"

Graph referenced as "Ultra-violet absorption spectrum of nuclear sap"

Copy of a photographic print referenced as "Cassor double beam oscilloscope. Chassis from underneath"

Graph referenced as "Micro-photometer record across chick fibroblast and wedge"

Photographic image referenced as "Phase annali"

Microscopic image referenced as "Ferric oxide solution X13,000"

Microscopic image referenced as "Wyoming Bentonite. Large particle size x 13000"

Microscopic image referenced as "Wyoming Bentonite. Small particle size E.S.D. 15-20 mp"

Copy of a printed table of the structural data of minerals in clay referenced as "Structural data of minerals (Clay)"

Microscope image referenced as "Autoradiograph 28 day exposure"

Microscope image referenced as "Autoradiograph, newt normal 20 days"

Microscope image referenced as "Autoradiograph 5 days"

Microscopic image referenced as "Vanadium pentoxide solution aged x13,000"

Microscopic image referenced as "Vanadium pentoxide solution fresh x13,000"

Table referenced as "Reflecting objectives 0.18"

Photographic image referenced as "Interferogram 0.79 N.A. [numerical aperture] 33% [central obstruction] 0.21"

Photographic image referenced as "Interferogram 0.54 N.A. [numerical aperture] 35% [central obstruction] 0.24"

Photographic image referenced as "Tobacco mosaic virus (T.M.V.) 7 Interchanging bands"

Photographic image referenced as "Tobacco mosaic virus (T.M.V.) 12 Helical contour"

Schematic diagram referenced as "Amici component N.A. [numerical aperture] 1.4"

Microscopic image of unknown cellular structure [no reference].

Hand-drawn graph referenced as "Absorption curves for two constituents of chick fibroblast in tissue culture"

Diagram referenced as "Measuring grid"

Microscopic image referenced as "Mitotic cells in a chick"

Diagram referenced as "Microphotometer dial"

Schematic diagram referenced as "Diagram of apparatus. Optical paths"

Copy of a printed diagram of extinction curves in the ultraviolet absorption spectrum referenced as "Extinction curves"

Schematic diagram referenced as "Clocking system. Exposure times"

Graph referenced as "Microphotometer trace through a living cell"

Graph referenced as "Microphotometer trace at 312. Irradiation nuclei"

Graph referenced as "Microphotometer trace at 265. Irradiation nuclei"

Graph referenced as "Measurement of absorption in irradiated cells"

Graph referenced as "Measurements of absorption of a living irradiated cell"

Schematic diagram referenced as "Optical paths in apparatus"

Graph showing ultra-violet absorption curve referenced as "Extractions from bean root tips"

Graph referenced as "Ultra-violet absorption curve of in vitro and in root lip extract"

Diagram referenced as "Generalized diagram of mammalian sperm"

Diagram referenced as "Diagram of head of ram sperm"

Diagram referenced as "Diagram of middle piece transverse section R.S. 7"

Diagram referenced as "Diagram of middle piece of ram sperm. Longitudinal section"

Diagram referenced as "Diagram of head of ram sperm. Cross sections through tail and fibrils"

Diagram referenced as "Diagram of head of ram sperm showing axes of symmetry"

Microscope image referenced as "Ram spermatozoa paper. Plate I"

Microscope image referenced as "Ram spermatozoa paper. Plate II"

Microscope image referenced as "Ram spermatozoa paper. Plate III"

Microscope image referenced as "Ram spermatozoa paper. Plate IV"

Microscope image referenced as "Ram spermatozoa paper. Plate V"

Microscope image referenced as "Ram spermatozoa paper. Plate VI"

Molecular diagram of Watson-Crick DNA base pairs referenced as "A/T, G/C pairs W.Crick"

Molecular diagram of Watson-Crick DNA base pairs referenced as "A/T, G/C pairs Hoogsteen"

Molecular diagram of Donohue DNA base pairs referenced as "A/T. G/C pairs Donohue"

Diagram of Fourier map sections of DNA bases referenced as "HI Po, Δ [delta]P, Δ [delta]P + H, C bases"

Diagram of Fourier map sections of DNA bases referenced as "Δ [delta]P (HI) with HI and BIII"

Molecular diagram of DNA base pair referenced as "Donohue average base pair"

Diagram referenced as "Determination of phase in isomorphous replacement method"

X-ray diffraction exposure referenced as "4006 x Li DIVA"

X-ray diffraction exposures referenced as "4028 x"

Graph referenced as "N (z) test on Li DNA [lithium salt DNA]"

Graph referenced as "N (z) test on Na DNA [sodium salt DNA]"

Graph captioned as "Intensity distribution in Li DNA [lithium salt DNA] diffraction"  referenced as "N (z) test on Na DNA [sodium salt DNA]"

Diagram of a Fourier map referenced as "Δ [delta]P (Δ [delta]I) Poly region"

Photograph of a crab referenced as "CRAB 1,2,3"

Graph referenced as "Hypochromism of DNA"

Microscope image referenced as "Sheep Liver Glucose and Fructose"

Microscope image referenced as "Sheep L. Intestine Glucose"

Microscope image referenced as "Sheep Heart Fructose"

Microscope image referenced as "Sheep Heart Glucose"

Microscope image referenced as "Sheep L. Intestine Fructose"

Graph referenced as "R63/82 Crystal Autoradiograph"

Microscope image referenced as "R63/82 Seminal Vesicle"

Microscope image referenced as "R63/82 Smooth Muscle"

Graph referenced as "R63/82 Brain 15 minutes"

Graph referenced as "R63/82 Brain 30 minutes"

Microscope image referenced as "H3- Thymidine in S.M. Muscle"

Microscope image referenced as "H3- Thymidine in Brain"

Microscope image referenced as "H3-Thymidine in Brain"

Microscope image referenced as "H3-Thymidine in Heart Muscle"

Table referenced as "Biological half life of DNA"

Table of molecular diagrams of amino acid chemical structure referenced as "20 Amino Acids"

Molecular diagram referenced as "Polynucleotide chain"

Diagram referenced as "1, 2 and 4 helices paranemic"

Diagram referenced as "Diagram of microcrystals in a fibre"

Graph referenced as "Diagram of intensity changes of rings on nucleohistone"

Diagram referenced as "Diagram of coiling of DNA to nucleohistone"

Copy of a printed diagram referenced as "Diagram of rotation in twisted liquid cuplats"

Copy of a printed diagram referenced as "Diagram of Frank spirulate"

Graph referenced as "Diffraction from paranemic helices"

Graph referenced as "Graph of orders of spectra of nucleohistone"

Diagram referenced as "Luzzati nucleohistone figure"

Copy of a printed microscope image captioned "Spherulite" Referenced as "Con. Robinson spirulate"

Copy of a printed microscope image referenced as "Ris 200 A° [degrees] fibrils"

Copy of a printed x-ray diffraction exposure referenced as "Isomorphous protein diffraction photograph"

Copy of a printed microscope image referenced as "Con.[centric] Robinson bands"

Copy of a printed microscope image referenced as "Con.[centric] Robinson bands from DNA"

Microscope image referenced as "DNA emerging from phage"

X-ray diffraction exposure of nucleohistone referenced as "X-ray 525 a nucleohistone"

X-ray diffraction exposure of nucleohistone referenced as "X-ray 525 B nucleohistone"

X-ray diffraction exposure of nucleohistone referenced as "X-ray 526 B nucleohistone"

X-ray diffraction exposure of nucleohistone referenced as "X-ray F 531 nucleohistone"

X-ray diffraction exposure referenced as "X-ray 1431 a"

X-ray diffraction exposure referenced as "X-ray 1740 a"

X-ray diffraction exposures referenced as "X-ray G Elliott nucleohistone wet"

X-ray diffraction exposure referenced as "X-ray different spacing of 55 and 60 A° [degrees] nucleohistone reflections"

Series of microscope images referenced as "RNA spirulate viewed at different angles"

Microscope image referenced as "North-South 'RNA spirulate"

Series of x-ray diffraction exposures referenced as "Nucleohistone rings of various humidities"

Comparison image of x-ray diffraction exposures referenced as "Change of intensity of nucleohistone 55A° [degrees] refe."

Photograph of space-filled molecular models referenced as "DNA and RNA models"

Diagram referenced as "DNA chemical structure"

Diagram referenced as "DNA-Ethidium model projection onto helix axis"

Diagram referenced as "Ethidium and proflavine chemical structure"

X-ray diffraction exposures referenced as "Poly A and Poly U diffraction Pattern 4219"

X-ray diffraction exposure referenced as "SRIVA Pattern 4158"

Copy of a printed diagram referenced as "Proposed mechanism for the specific action of 5FU"

Copy of a printed diagram referenced as "Genetic map of the r II region showing the base pairs in the standard type"

Copy of a printed diagram referenced as "Map of the messenger-RNA for the rII region showing the nucleotides"

Graph referenced as "Cross λ [lambda]emi Xλ [lambda] ++. Filter of the progeny phages of different genotype in the drops collected after centrifugation"

Copy of a printed diagram referenced as "Spot test used in classification of r mutants"

Diagram referenced as "Schematized behaviour of two diploids heterozygous the regulator for both structural genes"

Diagram referenced as "General model of the regulation of enzyme synthesis"

Diagram referenced as "Genetic map of the C region of the temperate bacteriophage λ [lambda]"

Graph referenced as "Transfer experiment with λ [lambda]emi"

Diagram referenced as "Models for recombination by breakage of DNA molecules"

Graph referenced as "Filter of the progeny phages of different genotypes in the drops collected after centrifugation"

Comparison of molecular diagrams of Hoogsteen DNA base pair and the Watson-Crick DNA base pairs referenced as "A/T pairs Hoogsteen, W.Crick"

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