. Cell heredity. Cytogenetics. 226 CELL HEREDITY _ â T 1 ' 1 ' K \ \ E \ \ a> \ \ a. m \ \ Oi \ \ ^ 10" -c* \ â m 00 \ "^ \ Visible light i io« ^ \ ^S. - e \ Tl ^ 10^ - Dark> V N. - 102 - 1 1 I - 200 400 UV Dose (seconds) (2536 A). 30 50 100 200 30 50 100 200 Dose (seconds) (2536 A) 30 50 100 200 FIGURE Reversal of the effects of ultraviolet light by visible light in E. coli (from Novick and Szilard, 1949, Proc. Nail. Acad. Sci. Wash., 35:591). shows, the immediate synthesis of a new protein; a few minutes later phage DNA begins to increase in amount. If chloramphenicol
. Cell heredity. Cytogenetics. 226 CELL HEREDITY _ â T 1 ' 1 ' K \ \ E \ \ a> \ \ a. m \ \ Oi \ \ ^ 10" -c* \ â m 00 \ "^ \ Visible light i io« ^ \ ^S. - e \ Tl ^ 10^ - Dark> V N. - 102 - 1 1 I - 200 400 UV Dose (seconds) (2536 A). 30 50 100 200 30 50 100 200 Dose (seconds) (2536 A) 30 50 100 200 FIGURE Reversal of the effects of ultraviolet light by visible light in E. coli (from Novick and Szilard, 1949, Proc. Nail. Acad. Sci. Wash., 35:591). shows, the immediate synthesis of a new protein; a few minutes later phage DNA begins to increase in amount. If chloramphenicol is present at the time of infection, neither compound is synthesized until the chloramphenicol is removed. But if it is added 5 minutes after infection, when protein synthesis has already begun, then DNA formation will take place even though protein synthesis does not continue. Some protein synthesis seems to be a prerequisite for DNA synthesis. This protein has been shown by isotope tracer experiments not to be a precursor of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sager, Ruth; Ryan, Francis J. (Francis Joseph), 1916-. New York, Wiley
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