The existence of two kinds of deoxyribonucleic acid (DNA) and chromosomal secretion as demonstrated by mean of autoradiography using tritiated thymidine.
D000818:Animals; D001345:Autoradiography; D002875:Chromosomes; D004247:DNA; D004175:Diptera; D013936:Thymidine; D014316:Tritium
D014316:Tritium; D004247:DNA; D013936:Thymidine
CHROMOSOMES; DIPTERA; DNA; RADIOAUTOGRAPHY; THYMIDINE; TRITIUM