Double minute chromosomes and a homogeneously staining chromosome region in C3H10T1/2 murine cells transformed “in vitro” by proton radiation

Four foci (type II or type III) of transformed cells, isolated from the murine line C3H10T1/2 after exposure to proton radiations, were expanded and cytogenetically examined. While the overall numerical chromosome distributions were similar, there were some differences between the various cell lines...

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