【判断题】Like the chromatin-remodeling complexes, the enzymes that modify histone tails are tightly regulated. They are brought to particular chromatin regions mainly by interactions with proteins that bind to...
【单选题】Various chemicals can induce mutations by modifying the nucleotides, causing base deletions or mimicking bases and substituting for them in the DNA chain. An example of the latter is:
【多选题】被列入世界地质公园的花岗岩名山有( )。
【单选题】患者男,16岁,因支气管哮喘发作入院,听诊可闻及
【单选题】_________ 是造成英汉外来词差异的主要原因
【判断题】《空调列车服务质量规范》规定每节车厢垃圾箱一个,与垃圾袋配套使用。
【单选题】以下哪种处理不能引起细菌的DNA突变?
B.
DNA modifying agents DNA修饰剂
C.
Intercalating agents 插入剂
【单选题】患者男,16岁。因支气管哮喘发作入院。听诊可闻及
【简答题】DNA Modifying Enzymes