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【单选题】
下面关于原核生物启动子的描述错误的是( )A.
启动子区是RNA聚合酶的结合区,其结构直接关系到转录的效率
B.
绝大部分启动子都存在-10bp处的TATA区和-35bp处的TTGACA区
C.
TATA区和TTGACA区是RNA聚合酶与启动子的结合位点,能与α因子相互识别而具有很高的亲和力
D.
在原核生物中,-35-10区之间的距离大约是16-19bp,小于15bp或大于20bp都会降低启动子的活性
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举一反三
【简答题】The jazz festival is held
________ in July in this city.
【单选题】The jazz festival is held __ in July in this city.
A.
passively
B.
annually
C.
occasionally
D.
seemingly
【简答题】听对话，回答问题。 1. Wlien is the Jazz Festival going to be held? A. Next Sunday. B. Next Friday. C. Next Thursday. 2. What kind of music does the woman like? A. Jazz. B. American country music. C. Rock.
【单选题】The jazz festival is held in July in this city.
A.
annual
B.
annually
C.
annualize
D.
annular
【单选题】The jazz festival is held _______ in July.
A.
actually
B.
annually
C.
actively
D.
accordingly
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