using a bioassay for polymerase gene function that is based on the requirement of viral replication for transformation of transfected chicken cells , we have localized the defect to the 2.5 kb ecori-kpni dna fragment containing more than 90 % of the polymerase gene by comparison with the corresponding dna fragment from the wild-type polymerase-positive bh-rsv , called type beta .
C1335440
polymerase gene
C0012892
dna