Any of a number of antibiot-ics produced by certain bacteria. The mainone,actinomycin D (or dactinomycin),canbind between neighbouring base pairs inDNA,preventing RNA synthesis. It is usedin the treatment of some cancers.由某些細(xì)菌產(chǎn)生的一類抗生素。主要的一種是放射菌素D(或更生......(本文共 259 字) [閱讀本文] >>