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细胞中的核糖体通常不是单独执行功能而是构成多聚核糖体研究表明动物卵裂时期细胞中多聚核糖体的百分比明显增高下列有关叙述中不正确的是a Template






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sketch 5009 Elen Jager from Attack on Titan
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tomski细胞中的核糖体通常不是单独执行功能而是构成多聚核糖体研究表明动物卵裂时期细胞中多聚核糖体的百分比明显增高下列有关叙述中不正确的是a coloring
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顾宏团队与合作者在《Nature Communications》现核糖开关可通过同时感应SAM和tRNA配体精确调控基因表达 sketch template
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细胞中的核糖体通常不是单独执行功能而是构成多聚核糖体研究表明动物卵裂时期细胞中多聚核糖体的百分比明显增高下列有关叙述中不正确的是A sketch template
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如图表示大肠杆菌细胞中组成核糖体的蛋白质的合成及调控过程． RP基因操纵元是控制核糖体蛋白质合成的DNA分子片段RBS是核糖体结合位点．请 sketch template
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游离的核糖体 附着在内质上的核糖体 内质 高尔基体分泌小泡 功能 4结构上合成的蛋白质为作用于细胞内如结构蛋白及吸酶等胞内酶 sketch template
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图1是基因指导多肽合成的过程图2为某细胞转录和翻的示意图．据图回答问题．1据图1推测核糖体不可能具有的位点是B．A．mRNA结合位点 sketch template
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三位学家因“对核糖体的结构和功能 的研究 而获得2009年的诺贝尔化学奖右 图为核糖体作用的机制下列有关叙述正确 的是 A 和的 sketch template
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在蛋白质合成过程中同一条mRNA分子能够同多个核糖体结合同时合成若干条蛋白质多肽链结合在同一条mRNA上的核糖体就称为多聚核糖体结合 sketch template
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下图为以mRNA为模板翻形成多肽链的过程对此过程的正确理解是A核糖体移动的方从右左B三个核糖体共同完成一条多肽链的翻C图中表示 sketch template
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11．细胞中的核糖体通常不是单独执行功能而是构成多聚核糖体研究表明动物卵裂期细胞中多聚核糖体的百分比明显增高下列有关叙述中不正确的是 sketch template
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从某种真核细胞中提取大量的核糖体放入含下列几种物质其中N元素已被15N标记的培养液里假设培养液里含有核糖体完成其功能所需要的一切物质和 sketch template
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图表示真核细胞中遗传信息的传递过程下列说法不正确的是 A．图中ab为mRNA的两端核糖体在mRNA上的移动方是由b到a所用原料是 sketch template
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如图为细胞中多聚核糖体合成蛋白质的示意图 为正在合成的肽链AB为mRNA的两端下列说法正确的是 A．该过程表示翻过程核糖体 sketch template
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胞内蛋白质和分泌蛋白的合成部位 A．都是细胞质中游离的核糖体 B．都是内质上的核糖体 C．分别是细胞质中游离的核糖体内质上的核糖体 sketch template
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在真核类细胞中蛋白质合成的场所 核糖体有结合在内质上的有不结合在内质上的如果合成的是一种分泌型蛋白质其氨基一端上有长度约为30 sketch template
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在蛋白质合成过程中同一条mRNA分子能够同多个核糖体结合同时合成若干条蛋白质多肽链结合在同一条mRNA上的核糖体就称为多聚核糖体结合 sketch template
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题目下图是“一个mRNA分子上结合多个核糖体同时合成多条肽链 的图解关于此图的叙述或据图作出的结论中不正确的是A 核糖体移动的方是 sketch template
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细胞中蛋白质的合成场所是 A．细胞核 B．核糖体 C．内质 D．高尔基体——青夏教育精英家教—— sketch template
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MRNA和氨基酸的对应关系1mRNA只含有4种碱基组成生物体的蛋白质的氨基酸有20种mRNA上的4种碱基怎样决定蛋白质中的20种氨基酸 sketch template
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如图为原核细胞中转录翻的示意图据图判断下列描述中不正确的是 A 图中表示4条以上的多肽链正在合成 B 转录尚未结束翻即已 sketch template
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