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研究所、轉學考(插大)◆分子生物學
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100年 - [無官方正解]100 國立清華大學_碩士班入學考試試題_生命科學院甲組、醫學生物科技學程﹕分子生物學#128884
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33. Please give chemical structures and describe "Adenosine deamination" for RNA editing.
其他申論題
(1)此地景主要位於哪個山脈？
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(2)此張照片中的山頭，主要受到何種地形作用的影響？
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III. 問答題 31. Distinguish functions and locations on DNA methylation and histone methylation.
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32. Describe mRNA processing to remove an intron between 2 exons in eukaryotes. points)
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34. Describe DNA replication on beta clamp cycles in lagging strand. (4 points)
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35. Draw diagrams of the lac operon that illustrate (and also include the explanation) negative control and positive control of this operon. (8 points)
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36. Use a diagram and explain the result of a DNase footprinting experiment that shows that A repressor dimers bind cooperatively to two operators separated by an integral number of DNA double-helical turns, but noncooperatively to two operators separated by a nonintegral number of turns.
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37. You are asked to use S1 mapping to locate the 5’-end of a given RNA transcript in cells at a given time. What does S1 mean? (2 points) Please describe how S1 mapping work (5 points)
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38. Please explain what an insulator is? Also, describe and explain two possible models how multiple insulators act?
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39. What is a CpG island? Why have CpG sequences tended to disappear from the human genome?
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