问题
单项选择题
将人的胰岛素基因，通过基因工程的方法转入大肠杆菌细胞内，结果在大肠杆菌细胞内产生胰岛素，说明：不同种生物共用一套（）
A.遗传信息
B.遗传密码
C.DNA
D.RNA
答案
参考答案：B
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将人的胰岛素基因，通过基因工程的方法转入大肠杆菌细胞内，结果在大肠杆菌细胞内产生胰岛素，说明：不同种生物共用一套（）
A.遗传信息
B.遗传密码
C.DNA
D.RNA
参考答案：B
| 35．Applications put computers to pratical business (1) , but below the (2) it’s the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store (3) . A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time. The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail. |
(2)
A．effective
B．effortless
C．light
D．week