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【单选题】
The gel below illustrates the purification of the RecA protein from E. coli. This gel was loaded from the top. Which statement BEST describes how proteins “run” in an SDS gel?A.
The proteins are separated primarily by molecular weight—the largest MW proteins are on the bottom, and the smallest are on the top.
B.
The proteins are separated primarily by molecular weight—the smallest MW proteins are on the bottom, and the largest are on the top.
C.
The proteins are separated primarily by charge—the protein with the smallest pI is on the top, and the protein with the largest pI is on the bottom.
D.
The proteins are separated primarily by charge—the protein with the largest pI is on the top, and the protein with the smallest pI is on the bottom.
E.
The proteins are separated primarily by their propensity to precipitate—as electrophoresis progresses, the heat generated by the current denatures proteins faster or slower. The slowest to denature is on the bottom, and the fastest to denature is on the top.
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【多选题】党的十九大召开前,党代表的条件、选举产生储蓄、代表名额分配、构成比例等细节问题都向社会公开。党中央要求,候选人的推荐提名从基层开始,所有基层党组织的党员都要参加。这表明
A.
民族集中制是我党的根本组织制度和领导制度
B.
选举党代表是公民的一项基本政治权利
C.
党务公开是执政党与时俱进的体现
D.
党内民主是党的生命,有利于实现党的宗旨
【多选题】公司财务小梅在 QQ 上收到部门经理张某发来的信息,要求她将一笔款项转到***银 行账户上,小梅的做法正确的是:()
A.
当面或打电话向张经理核实；
B.
按照领导的要求立即把钱款转过去，以免耽误工作；
C.
现在QQ 盗号诈骗的案件很多，应该认真核实对方身份；
D.
不轻信，不能把钱款轻易转入陌生账户。
【多选题】党的十九大召开前 , 党代表的条件、选举产生程序、代表名额分配、构成比例等细节问题都向社会公开。党中央要求 , 候选人的推荐提名从基层开始 , 所有基层党组织的党员都要参加。这表明
A.
民主集中制是我党的根本组织制度和领导制度
B.
选举党代表是公民的一项基本政治权利
C.
党齐公开是执政党与时俱进的体现
D.
党内民主是党的生命 , 有利于实现党的宗旨
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