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最佳答案：A描述错误；增强子定义是能使和他连锁的基因转录频率明显增加的DNA序列；增强子是顺式作用元件自然是可以和DNA结合蛋白结合的,以甾体激素受体的“锌指结构”为例~
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最佳答案：这活必须得在细胞内完成.根据mRNA序列合成一段双链DNA,在PCR扩增仪里面扩增,然后把DNA结合到运载体上,把运载体导入受体细胞,检测出成功导入的细胞,再把
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最佳答案：We not only to enhance the cooperation between each other,and also benefit a lot
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最佳答案：With the rapid developing,China plays a more and more important role in the worl
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最佳答案：楼上是机译！I think that the adequate sports can relief stress, make us stronger and f
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最佳答案：High temperature mechanical properties in order to study the reinforcement volum
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最佳答案：Thanks you the vigorously support which works to me,this strengthened very many
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最佳答案：test and analysis of the cutting force of Ceramic Reinforced Aluminum Matrix Com
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最佳答案：The welded steel structure,pure bending Liang,the fatigue strength,the fatigue l
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最佳答案：Keep learning, diligent in thinking, pay attention to the accumulation, enhance