[Study of the synthesis of Rous virus-specific RNA in chick embryo cells].

The presence of virus-specific RNA in commercial chick embryos and its lack in chick embryos of leukemia-free chicken farm of the USSR AMS Oncological Research Center as well as in cell cultures from RIF-free chicken infected with Marek's disease virus was demonstrated by hybridizationof 3H-DNA-product of Rous sarcoma virus synthesized in vitro in the presence of actinomycin D with the total preparation of cellular RNA.