資訊推薦

• 37.一束紅光從介質 1 入射至介質 2，方向如圖所示，下列對於 1、2 兩種介質的光學屬性的判斷，正確的為何？ (A)光在介質 1 中的頻率較高 (B)光在介質 1 傳播速度較快(C)光在介質 2
• 1、下列各選項「」中的數字，何者是「虛數」？(A)「三十六」計，走為上策(B)白髮「三千」丈(C)歲寒「三」友(D)「三」字經
• 1. A: How often do you go out with friends? B: ______.(A) Always (B) Twice a month (C) Not really (D
• 21. The oligonucleotide AGGUCCAUUGAAp, is best described as(A) an RNA oligonucleotide with a 3'
• 22. Which of the following sequences of DNA is most likely to form Z-DNA? (A) 5'-ATCTACATCTACAT
• 23. Supercoiling of DNA(A) is not observed in prokaryotes(B) requires the action of topoisomerase en
• 24. Protein synthesis can occur while the mRNA molecule is being synthesized in:(A) Prokaryotes only
• 25. Which of the following is not a function of DNA Polymerase III?(A) Polymerization.(B) Ligating t
• 26. The following enzyme is responsible for the bulk of DNA synthesis during replication.(A) DNA Pol
• 27. Which of the following activities does E. coli DNA polymerase III lack?(A) 5' → 3' pol
• 28. The primer for in vivo DNA replication is:(A) The 3' hydroxyl of the preceding Okazaki frag
• 29. E. coli replication on the lagging strand(A) is carried out by DNA polymerase I(B) is initially
• 30. The enzyme that attaches the Okazaki fragments together is called(A) ligase.(B) primase.(C) DNA
• 31. Which of the activities of DNA Polymerase I is most important in removing the primer?(A) Polymer
• 32. In eukaryotic replication, the RNA primers are degraded by:(A) the 5’ to 3’ exonuclease activity
• 33. The enzyme telomerase uses mechanisms that involve:(A) Repeating sequences at the telomeres.(B)
• 34. RNA synthesis begins at the base in the DNA sequence designated by the followingnumber:(A) +1 (p
• 35. The promoter site is(A) the start site for transcription in DNA(B) the binding site for regulato
• 36. Which of the following is the best description of an operon?(A) An enhancer that positively regu
• 1、下列選項中「調」字的讀音，何者與其他三者不同？(A)聲音單「調」(B)「調」撥軍隊(C)「調」整隊伍(D)詳細「調」查。
• 37. Which of the conditions would result in the greatest amount of transcription of the lacoperon?(A
• 38.如圖，長直導線與導線環固定在同一紙平面上，當長直導線載有向左的電流 I 時，下列有關導線環上出現之應電流 i 的敘述，何者正確？ (A)當 I 隨時間增大時，i 為順時鐘方向 (B)當 I 隨時
• 39.氦原子核的電荷是質子電荷的 2 倍，而其質量則是質子質量的 4 倍。假設一質子和一氦原子核，彼此只受到來自對方的靜電力作用，則當質子所受靜電力的量值為 F 時，氦原子核所受靜電力的量值為何？ (
• 40.下列有關「光電效應現象」的敘述，何者正確？(A)即使入射光之頻率高於底限頻率，若光強度小於一定值，則不會產生光電子(B)若入射光之頻率低於底限頻率，則不論光強度多少，一定不會產生光電子(C)不論
• 1. This is a non-smoking area. Please ________ your cigarette right away.(A) put down (B) put out (C