问题
单项选择题
关于转录调节因子叙述错误的是（）
A.所有转录因子结构均含有DNA结合域及转录激活域
B.有些转录因子可能含有DNA结合域或转录激活域
C.通过DNA-蛋白质或蛋白质-蛋白质相互作用发挥作用
D.大多数转录因子的调节作用属反式调节
答案
参考答案：B
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关于转录调节因子叙述错误的是（）
A.所有转录因子结构均含有DNA结合域及转录激活域
B.有些转录因子可能含有DNA结合域或转录激活域
C.通过DNA-蛋白质或蛋白质-蛋白质相互作用发挥作用
D.大多数转录因子的调节作用属反式调节
参考答案：B
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| Mr. Miller had a shop in a big town. He 1 ladies (女士) clothes, and he always had two or three shop girls to 2 him. They were always 3 because they were paid lower wage (工资, 周薪) than older women, but 4 of them worked for him for very 5 , because they were young, and they did not meet many boys in 6 shop. Last month a girl came to work for him. Her 7 was Helen, and she was very good. After a few days, Mr. Miller 8 a young man come into the shop. He went 9 to Helen, spoke to her for a few 10 and then went out of the shop. Mr. Miller was very 11 and when the young man 12 , he went to Helen and said, "That young man didn't 13 anything. What did he want to 14 ?" Helen answered,"He just wanted to 15 me." | ||||
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