反密码子UAG识别的mRNA上的密码子是
A.GTC
B.ATC
C.AUC
D.CTA
E.CUA
参考答案:E
解析:反密码子5'-UAG-3'识别密码子5CCUA-3'。
微处理器的性能由多种因素决定,其中最主要的是()
A.内存容量
B.时钟频率
C.字长(芯片位数)
D.主板类型
句型转换。
1. What's the matter with you?(改为同义句)
_______ _______with you?
_______ your_______?
2. Let's go to Li I.e i 's house to play computer games. (改为同义句)
_______ not _______ to Li Lei's house to play computer games?
_______we _______ to Li Lei's house to play computer games?
_______ _______ going to Li Lei's house to play computer games?
3. —I'm dizzy (头晕目眩的).
—You should lie down and rest. (改为同义句)
—I'm dizzy (头晕目眩的).
—You should lie down and _______ _______ _______.