PRECURSORS OF PHAGE 63 



and biochemical studies of the fate of the infecting virus particle have 

 shown that it loses its identity and merges with the host, protein and 

 nucleic acid synthesis probably occurs around segregated subunits act- 

 ing as templates and the products of these are then assembled into 

 complete virus particles prior to lysis of the host. 



LITERATURE CITED 



Spizizen, J., 1943. Biochemical studies on the phenomenon of -sdrus reproduction. I. 



Amino acids and the multiplication of phage. 7. Inf. Dis., 73:212-228. 

 Kozloff, L. M., Knowlton, K., Putnam, F. W., and Evans, E. A., Jr., 1950. Sources of 



bacteriophage nitrogen. Federation Proc, 9: 192. 

 Barry, J. M., Gollub-Banks, M., and Koch, A., 1950. Transfer of purines and pyrimi- 



dines from bacterial host to bacteriophage progeny. Federation Proc, 9:148-149. 

 Kozloff, L. M., and Putnam, F. W., 1950. Biochemical studies of virus reproduction. 



III. The origin of virus phosphorus in the Escherichia coli T6 bacteriophage 



system. /. Biol. Chem., 182:229-242. 

 Cohen, S. S., 1948. I. The synthesis of nucleic acid and protein in E. coli infected 



with T2r+ bacteriophage. II. The origin of the phosphorus in T2 and T4 bac- 

 teriophages. J. Biol. Chem., 174:281-293, 295-303. 

 Monod, J., and Wollman, E., 1947. L'inhibition de la croissance et de I'adaptation 



enzymatique chez les bacteries infectees par le bacteriophage. Ann. Inst. Pasteur, 



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