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：2252-2257
DOI：10.1073/pnas.68.9.2252
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：A fraction of the covalently closed mitochondrial DNA in mouse L cells contains a replicated heavy-strand segment that is hydrogen bonded to the circular light strand. The inserted single strand is dissociable from the circular duplex at an elevated temperature.
关键词：density-gradient centrifugation ; electron microscopy ; separated strands ; ethidium bromide ; mouse DNA
