06-17-2007, 06:30 PM
A clone of cancer cells os resistant to vincristine,doxorubicin, and dactinomycin but not to the methotexate and various alkilating agents.The mechanism of resistence os most likely to involve:
A-absence de superoxide dismutasa.
B-altered DNA polymerase.
C- enhanced drug transport oit of the cell.
D-inability to form polyglutamates
E- increase DNase
A-absence de superoxide dismutasa.
B-altered DNA polymerase.
C- enhanced drug transport oit of the cell.
D-inability to form polyglutamates
E- increase DNase