调节基因（regulatory gene)

调节基因(regulator，regulatory gene，I)

DNA修复调节基因(DNA repair regulation gene)

A、cis-regulatory module

B、differential gene expression

C、gene regulatory protein

D、transcription factor

A.Structural genes 结构基因

B.Promoter site 启动子区域

C.Operator site 操作子区域

D.Regulator gene 调节基因

A、metabolic channeling 代谢通道

B、regulation of gene expression 调节基因表达

C、posttranslational regulation of enzyme activity 翻译后的酶活力调节

D、所有选项均正确

A.假基因是真核基因组中的某些遗传物质单位，它们并不产生有功能的基因产物

B.假基因与有功能的基因同源，但其有功能的同源基因一定是调节基因

C.假基因不参与蛋白质编码，所以是“垃圾基因”

D.假基因并不稀罕，它们就是断裂基因中的内含子

A.假基因是真核基因组中的某些遗传物质单位，它们并不产生有功能的基因产物

B.假基因与有功能的基因同源，但其有功能的同源基因一定是调节基因

C.假基因不参与蛋白质编码，所以是“垃圾基因”

D.假基因并不稀罕，它们就是断裂基因中的内含子

A．The answer is that even though control of gene expression is combinatorial, the effect of a single transcription regulator can still be decisive in switching any particular gene on or off,simply by completing the combination needed to activate or repress that gene

B．This is like dialing in the final number of a combination lock: the lock will spring open if the other numbers have been previously entereD

C．And just as the same number can complete the combination for different locks, the same protein can complete the combination for several different genes.

D．As long as different genes contain regulatory DNA sequences that are recognized by the same transcription regulator, they can be switched on or off together as a coordinated unit.