transyte中世纪建筑中的窄门道或走廊TRANSn.会报(论文；传导；变压器；翻译；译员)Transcranial color code sonography经颅彩色多普勒transgenic nuclear transfer embryo转基因核移植胚Transurethral Resction of Prostate经尿道前列腺电切术transbuccaltrochar instrumentation穿颊器transmissible enteritis of turkeys火鸡传染性肠炎transperineal interstitial implant经会阴间质插置transgenic metaUothionein mushroom转金属硫蛋白基因平菇transnational grid interconnecting跨国联网transboundary environmental damage跨界环境损害transgenic fungus-resistant rice抗真菌转基因水稻

1. The substitution of a purine for a pyrimidine, or vice versa is a transversion.
   嘌呤为嘧啶取代或嘧啶为嘌呤所取代，叫做颠换。