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【简答题】
完形填空。 Mr. Smith is our English teacher. He is about 1.76 meters 1 . He has black hair and two big 2 . He works very hard in the school. Every student likes him very much. He gets up early every day. Then he walks to the 3 . He asks all his students to 4 in the classroom. At eight o'clock 5 begin (开始). Mr. Smith has two classes in the morning and in the other time he checks (检查) the 6 homework. In the afternoon he prepares (准备) his 7 lessons. He is very careful, so his classes are usually interesting. 8 school he plays basketball on the playground. In the evening, he sometimes helps some of his students 9 English at home. And sometimes he writes something. He likes writing. We often 10 his articles (文章) in the newspaper. This is our teacher. We love him. (     )1. A. young (     )2. A. arms (     )3. A. library (     )4. A. read (     )5. A. games (     )6. A. teachers' (     )7. A. good (     )8. A. After (     )9. A. in (     )10. A. look B. tall B. legs B. home B. play B. songs B. students' B. first B. In B. for B. read C. old C. eyes C. school C. talk C. classes C. workers' C. new C. At C. with C. see
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【简答题】请写出以下缩写词的英文全称及中文翻译: (1)ALU (2)DBMS (3)ROM (4)TCP (5)OA
【判断题】流体在等直径的导管中作稳态流动时,由于流动有摩擦阻力损失,因此流体的流速沿管长而逐渐变小。
A.
正确
B.
错误
【判断题】( ) 遗传中心法则反映了遗传信息传递的方向。
A.
正确
B.
错误
【简答题】试述遗传中心法则的主要内容,该法则的揭示在生命科学的发展中有何意义?
【简答题】遗传中心法则
【判断题】( ) 遗传中心法则概括了 DNA 在信息代谢中的主导作用。
A.
正确
B.
错误
【简答题】遗传中心法则genetic central dogma内容是什么?
【单选题】根据遗传中心法则,生物遗传信息流的方向是( )。 A mRNA→DNA→蛋白质
B.
tRNA→mRNA→DNA
C.
DNA→mRNA→蛋白质
D.
DNA→tRNA→mRNA→蛋白质
E.
蛋白质→mRNA→DNA
【多选题】以下关于遗传中心法则描述正确的是 ( )。
A.
中心法则总结了生物体内遗传信息的流动规律
B.
中心法则揭示遗传的分子基础
C.
DNA突变是对中心法则的挑战
D.
逆转录这是中心法则的补充
【简答题】遗传中心法则
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