排序方式: 共有1条查询结果,搜索用时 15 毫秒
1
1.
A sucrose density gradient analysis of3H-uridine pulse-labelled RNA from the first postirradiation mitotic cycle ofPhysarum polycephalum shows that all the density classes of RNA synthesized during this period are resistant to the peptide-antibiotic, actinomycin
D. In fact, the synthesis is found to be greater in the presence of the drug. The heterogenously sedimenting synthetic activity
here may represent a single species of RNA and its precursors or more than one kind of RNA. Further characterization of this
RNA is meaningful in view of the actinomycin insensitivity of the postirradiation mitotic cycle itself to this antibiotic. 相似文献
1