rna blots of poly ( a ) -containing rna from normal livers and spleens and from a number of transplantable hematopoietic and lymphoid balb/c tumors , including early and late generation plasmacytomas , were hybridized with probes for four onc genes . abl rna was abundant only in those tumors producing abelson virus , bas rna was found in approximately equal amounts in normal tissues and plasmacytomas , and myb rna was absent in normal liver and plasmacytomas .
C0037993
spleens
C0018957
hematopoietic