the objectives of the series of experiments described were ( a ) to determine whether there was a circadian rhythm in the incorporation of tritiated thymidine into dna of the spleen in mice kept on a conventional light-dark cycle and fed ad libitum , ( b ) to study the effect that different light-dark cycles and a time-limited feeding schedule had on this circadian rhythm , ( c ) to ascertain what effect the presence of an 8-day ehrlich ascites carcinoma ( eac ) had on the rhythm in dna synthesis in the spleen and what effect the eac had on the circadian rhythm in the mitotic index in the corneal epithelium , and ( d ) to determine whether there was a circadian rhythm in the duration of life-span in mice bearing the eac .
C0012854
dna
C0598312
dna synthesis