資訊推薦

• 20. All of the following can be found in chromatin except (A) DNA. (B) histones. (C) RNA. (D) transc
• 21. Telomeres (A) consist of repetitive sequences with high G content. (B) are a few hundred base-pa
• 22. Which of the following sequential order for the secretory pathway is false? (A)Rough endoplasmic
• 23. Most eukaryotic genes are controlled at the level of (A) transcription initiation. (B) transcrip
• 24. An enhancer (A)is a protein that binds to RNA polymerase and stimulates transcription. (B) inter
• 25. Which of the following sequences functions as a promoter for transctiption? (A) TATA box. (B) in
• 26. Which of the following statements regarding RNA splicing is correct? (A) initiation of transcrip
• 27. Which of following events does not occur within the nucleus? (A) protein phosphorylation (B) RNA
• 28. Which of the following is not used in the electrophoretic mobility shift assay (EMSA)? (A) a rad
• 29. RNA editing is (A) post-transcriptional alteration of sequences in mRNAs. (B) pre-transcriptiona
• 30. Which of the following is most likely to lead to a loss of gene function? (A) A sequence change
• 31. A cDNA library differs from a genomic library in that (A) the cDNA was constructed from introns
• 32. Protein sorting of anterograde cargo to different destinations within the Golgi complex occurs i
• 33. The only cells that can correctly attach sugars to proteins to form glycoprotein products are (A
• 34. Which type of RNA participates in nuclear export of mRNA? (A) snRNA (B) miRNA (C)tRNA (D) hnRNA
• 35. Synthesis of pre-rRNA occurs in the (A) cytoplasm. (B) endoplasmic reticulum. (C) extranucleolar
• 36. Steroid hormones activate transcription by (A) binding to a nuclear receptor. (B) phosphorylatin
• 37. Transcriptionally inactive genes (A) are not located within nucleosomes. (B) often are methylate
• 38. What is the function of TFIIH in the transcription initiation complex? (A) binding to the TATA b
• 39. Protein X contains 7 transmembrane domains, with a short N-terminus and a long C-terminus. Follo
• 40. The first step in the secretory pathway that should be inhibited by a dominant-negative mutant o
• (1)在比較防曬品的效能時，下列哪一個是礦物油和氧化鋅功用的科學性陳述？ (A) 礦物油和氧化鋅皆是被試驗的因素。 (B) 礦物油是被試驗的因素，而氧化鋅是對照的物質。 (C) 礦物油是對照的物質，
• (2)下列哪一個問題是咪咪和狄恩嘗試回答的？ (A) 與其他的防曬品比較，每種防曬品的保護如何？ (B) 防曬品如何保護你皮膚免受紫外線輻射傷害？ (C) 有沒有任何防曬品提供比礦物油更少的保護？ (
• 9.下列關於主族元素及其化合物的敘述，何者正確？ (A)第14族元素(碳族)中，第一游離能最大者為鉛 (B)磷的同素異形體中的紅磷(赤磷)之毒性最強，所以用來製作 老鼠藥 (C)硼砂有殺菌和消毒的功效
• 10.下列哪一組化合物的實驗式，彼此是相同？ (A)CH3CH2OCH2CH3和CH3COCH2CH3 (B)C6H6和CH3CH2CH2CH2CH2CH3 (C)CH3COOH和HCOOCH3 (D