期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1971
卷号：68
期号：9
页码：2022-2024
DOI：10.1073/pnas.68.9.2022
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：We attempted to apply a new criterion, the template specificity of RNA replicases of Escherichia coli RNA phages, for the grouping of these phages. Based on the template specificity, it was shown that (a) Q{beta
