单选题:下列关于tRNA的叙述,错误的是( )。 题目分类:基础知识 题目类型:单选题 号外号外:注册会员即送体验阅读点! 题目内容: 下列关于tRNA的叙述,错误的是( )。 A.两条链方向相反 B.两股链通过碱基之间的氢键相连 C.为右手螺旋,每个螺旋有10个碱 D.三级结构呈倒“I”型 E.含有大量的稀有碱基 参考答案: 答案解析:
What Is Anthrax (炭疽)? There's been a lot of talk about anth What Is Anthrax (炭疽)? There's been a lot of talk about anthrax on the news late 分类:基础知识 题型:单选题 查看答案
For young children, getting dressed is a complicated busines For young children, getting dressed is a complicated business.A.strange B.comple 分类:基础知识 题型:单选题 查看答案