this report shows that in the absence of their cognate promoter , two bacteriophage rna polymerases are capable of performing unusual transcription reactions : ( i ) the dna template serves also as a primer for rna synthesis and this leads to hybrid dna/rna molecules , ( ii ) if the dna template forms a hairpin structure , the linear dna can be transcribed via the 'rolling circle ' mechanism .
C0040649
transcription
C1328948
rna synthesis