有机体可分为许多互不相联的种类。The organisms can be divided into discrete categories.在后一种情形下,有机体似乎变成可塑造的.In the later case the organization seems to become plastic.在从细菌到有袋类动物的许许多多有机体中,已经发现光致反应系统.Photoreactivation systems have been foun...
DNA交链主要由照射于DNA或细菌芽胞引起.DNA cross - links are produced mainly upon irradiation of dry DNA or bacterial spores.目的: 探讨互隔交链孢霉诱导 食管癌 的发生机制.Aim : To study the mechanism of esophageal cancer induced by alternaria ( AOH ).硼砂是一种交链...