The Double Helix: A Personal Account of the Discovery of the Structure of DNA |
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Page 88
... held the chains together , the best guess seemed to be salt bridges in which diva- lent cations like Mg ++ held together two or more phos- phate groups . Admittedly there was no evidence that Rosy's samples contained any divalent ions ...
... held the chains together , the best guess seemed to be salt bridges in which diva- lent cations like Mg ++ held together two or more phos- phate groups . Admittedly there was no evidence that Rosy's samples contained any divalent ions ...
Page 160
... held together the three intertwined chains . Without the hydrogen atoms , the chains would immediately fly apart and the structure vanish . Everything I knew about nucleic - acid chemistry indicated that phosphate groups never contained ...
... held together the three intertwined chains . Without the hydrogen atoms , the chains would immediately fly apart and the structure vanish . Everything I knew about nucleic - acid chemistry indicated that phosphate groups never contained ...
Page 194
... held together by hydro- gen bonds . Though I initially went back to my like - with - like prejudices , I saw all too ... held together by two hydrogen bonds was identical in shape to a guanine - cytosine pair held together by at ...
... held together by hydro- gen bonds . Though I initially went back to my like - with - like prejudices , I saw all too ... held together by two hydrogen bonds was identical in shape to a guanine - cytosine pair held together by at ...
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Common terms and phrases
a-helix adenine answer argument arrival atoms bacterial base pairs biochemistry biological Cal Tech Cambridge Cavendish chains Chargaff chemical chemistry chemists College conversation Copenhagen crystallographic crystals cytosine Delbrück dinner DNA molecule DNA structure double helix Elizabeth existed experimental fact fellowship Francis Crick genes genetic girls Griffith guanine helical Herman hope Hugh Huxley hydrogen bonds idea immediately important ions John Kendrew keto King's knew large number letter like-with-like Linus Pauling London look lunch Luria manuscript Maurice Wilkins Maurice's Max and John Max Delbrück Max Perutz model building molecular Moreover morning never Nonetheless nucleic acids nucleotides Odile Pauling's Perutz Peter phage phosphate groups polynucleotide Pop's possibility problem protein purine purine and pyrimidine pyrimidine quickly reason Rosalind Franklin Rosy Rosy's scientific Sir Lawrence Bragg solve soon sugar-phosphate backbone talk tautomeric forms tell theory thought three-chain thymine tion told walked wanted Watson week X-ray diffraction X-ray pictures