SUBJECT INDEX 



139 



Deoxyribonucleic acid (DNA), 

 localization, 2 

 protective value of, against RNase, 



40 

 role of, in protein synthesis, 31, 



130,131 

 synthesis, 



in developing eggs, 2 



in relation to protein and RNA 



synthesis, 17-19 

 in RNase-blocked mitoses, 56 

 Differentiation, 

 of nuclei, 89 



RNA content of cells at, 65 

 Dinitrophenol, 21, 44, 68, 124, 129 

 Dipeptidase, 40, 106 

 Dische reaction, for DNA estimation, 



2 

 Dithiodiglycol, stimulation of cap for- 

 mation by, 118 

 Drosophila, RNA content of imaginal 

 discs of, 4 



Ecto-ATPase, 107 

 Ectodermless embryo, 80 

 Eggs, (see also Amphibian, Chick, 

 Fish, Frog, Mammals, Reptiles, 

 Sea Urchins, Starfish and Triton), 

 RNA gradients in, 66 

 RNA and protein synthesis in enu- 

 cleated, 126, 127 

 Electron microscopy, of cytoplasm, 



19,20 

 Endoplasmic reticulum (see Ergasto- 



plasm) 

 Enolase, 106 

 Enucleation experiments, 

 in Amoeba proteus, 100-108 

 in Acetabularia, 108-125 

 in eggs, 126, 127 

 Enzymes, 

 control by nucleus on, 106, 119, 



120 

 proteolytic, 



effects, on neural induction, 58- 



60 

 inhibition of, by RNase, 40 



synthesis, 



induced, 17-19, 31, 32, 120 

 in reticulocytes, 125, 126 



Ergastoplasm, 19, 20, 102, 115 



Escherichia coli, 17, 18 



Esterase, 106 



Ethionine, stimulation of cap forma- 

 tion by, 118 



Evocators, 57-60 



microsomes as, 80-87 



Fasting, effects on RNA content, 102 

 Fertilization, analogy between, and 



phage infection, 55 

 Feulgen reaction, 1, 2 

 Fish eggs, RNA, 

 gradients in, 66 



synthesis of, and morphogenesis, 68 

 Follicle cells, amino acid incorpora- 

 tion in, 6 

 Formate, incorporation, into micro- 

 somes, 21 

 Freeze substitution, 38, 40, 41 

 Frog, oocytes, effects of RNase in, 40 

 Fructosidase, synthesis, in enucleated 

 Acetabularia, 120 



jS-Galactosidase, 31, 32 

 Galactozymase, 18 

 Gastric mucosa, 



amino acid incorporation in, 6 



RNA content, 4, 7 

 Genes, 



activity, in Acetabularia, 1 1 3 



in differentiated nuclei, 89 



and specific RNA's, 130, 131 

 GIF, 31 



Glucosidase, 18 

 Glucozymase, 31 

 Glutamate, 23 

 Glycine incorporation, 



in enucleated Acetabularia, 118, 119 



in enucleated eggs, 126 



into microsomes, 21 



into nuclear proteins, 99, 100 

 Gradients, 



biochemical and cytochemical, dur- 

 ing development, 65, 66 



