Your answer should describe what each item is and how it functions in the cell. Diagrams, structure and sequence information should be included in your answer, as necessary. 1. Yeast artificial chromosome 2. RNA interference 3. Proteomics

PART I: DESCRIPTION (2 points each) Your answer should describe what each item is and how it functions in the cell. Diagrams, structure and sequence information should be included in your answer, as necessary

Recombinant gene expression in eukaryotic systems is often the only viable route to the large-scale production of authentic, post￾translationally modified proteins. It is becoming increasingly easy to find a suitable system to overexpress virtually any gene product

How Important Is Cost? Reagents obviously figure into the cost of a procedure, but the labor required to produce and apply the reagents of purification should also be considered. How Important Is Reproducibility (Robustness) of the Procedure?

一、三种不同的RNA聚合酶 二、RNA 聚合酶的组成 三、真核RNA聚合酶的活性

一、转录反应和转录方向 二、摸板链（-）和编码链（+）p.166 三、转录步骤：起始,延伸,终止

Translation is the conversion of the information in the nucleic acid sequence to polypeptides of a specific amino acid sequence

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