the mumtv rna in all hormone-induced tumors was readily distinguishable in base sequence from standard mumtv rna but indistinguishable from mumtv rna recovered from lactating mammary glands of balb/c females carrying only endogenous mumtv proviruses , suggesting that endogenous mumtv rna sequences were induced in hormone-induced neoplasms .
C0035699
rna
C0035668
rna