INDEX 



211 



Sequential specificity of high poly- 

 mers as mark of the specificity of 

 the cell, 165, 166 



Serratia marcescens DNA, 30 



Sheep DNA, 87, 137 



Sheep liver, composition of RNA's, 

 17 



Solitary and bunched nucleotides, 

 in DNA, 166 



, schematic representation of 



a fragment of a double strand of 

 DNA, 132 



Soluble RNA's of liver cytoplasm 

 for transfer of amino acids, 157 



Solvent systems for separation of 

 purines and pyrimidines, 7-8 



Species diversity and invariability 

 of composition within the same 

 species of highly polymerized cell 

 constituents, 120 



Species specificity of composition of 

 DNA, 13, 15, 66, 120, 164 



of RNA, 120 



Specific arrangement of the consti- 

 tuents of cell-specific polymers, 

 role of nucleic acids, 118 



Specificity, direct gene-controlled 

 and reflected — of highly poly- 

 merized cell constituents, 120 



Spermatozoa, ratios of adenine to 

 guanine and of thymine to cyto- 

 sine in deoxypentose nucleic acids 

 of human—, 12, 13, 14, 15 



Sub-units in DNA, absence of — , 

 133 



Sugar components of nucleic acids, 

 18, 53, 65, 84 



Templates, 2, 74, 81, 95, 104, 111, 



116, 127, 184, 194 

 — in time for manufacturing of cell 



constituents, 81, 116 

 Terminal phosphate group in DNA, 



53 

 Tetranucleotide hypothesis, 2, 3, 13, 



28, 51, 85, 127 



Thymic acid, 33 



Thymonucleic acid, 3 



Thymus, nucleic acids of — , 3, 12, 

 14, 15 



Transformation, bacterial, by DNA, 

 26,71, 121, 181 



Tubercle bacilli, distribution analy- 

 sis of DNA of avirulent variant 

 (BCG) of bovine — , 141, 142 



— , isolation of DNA via the nu- 

 cleoprotein, 7 



Ultraviolet absorption spectra of 

 DNA specimens, 32 



— of nucleoproteins, 43 



Ultraviolet radiation, mutagenic ac- 

 tion spectrum and absorption 

 spectrum of nucleic acids, 71 



Unity of biochemistry, the concept 

 of — , 179 



Unity of nature, the concept of — , 

 179 



Uracil, instead of thymine in RNA's, 

 11 



Uridine, isolation and estimation, 9 



Uridylic acid, refractoriness to hy- 

 drolysis by acids, 16 



Vitalism, 110 



Wheat germ DNA, 29, 30, 31, 33, 

 46, 68, 87, 139, 154 



, composition of intact prepa- 

 rations and of enzymically pro- 

 duced cores, 28, 29 



— , nucleotide ratios in pentose nu- 

 cleoproteins, 94, 119 



— RNA, 69 



Yeast DNA, composition (table), 

 14, 30 



— RNA, action of ribonuclease, 34 

 , composition, nucleotide ra- 

 tios, 16, 69, 93, 94, 119 



X-ray investigations of DNA, 53 



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