資訊推薦

• 38. Which molecule is NOT required for peptide bond formation at ribosome?(A) rRNA(B) aminoacyl-tRNA
• 39. G protein is active when:(A) GDP replaces GTP(B) It is bound by its ligand and transported to th
• 40. The cholera toxin does not allow GTP to be hydrolyzed to GDP. What effects of cholera toxin woul
• 41. During the transduction of a signal, one molecule or ion may be closely associated or interact w
• 42. All Androgens are formed from:(A) Proteins(B) Tyrosine (C) Cholesterol(D)Small peptides(E) Fatty
• 43. Which RNA describes below is NOT non-protein coding RNA?(A) mRNA(B) IncRNA(C) tRNA(D)SiRNA(E)rRN
• 44. Which description of the difference between DNA and RNA synthesis is WRONG?(A) Both of them have
• 45. Which modification describes below is NOT eukaryotic RNA processing?(A) 5' capping(B) Spici
• 46. Which transcriptional step is NOT regulated by CTD (carboxy terminal domain) phosphorylation/dep
• 47. Which one of the following descriptions as to chromatin is WRONG? (A) Transcriptionally inactive
• 22. Which of the following is diamagnetic?(A)N2 (B) (C)O2 (D) (E)
• 48. The structure above is:(A) UTP(B) dATP(C) GTP(D)dCTP(E)All are wrong
• 49. Which one of the following subunits is NOT contained in the basic DNA-dependent RNA polymerase o
• 50. Which one of the following statements as to TATA box is RIGHT?(A) A six-nucleotide-pair A+T-rich
• 【題組】 (2) 決定
• 2. The fundamental differences between RNA and DNA are(A) the organic bases only(B) bases, ribose un
• 3. Which contains a phosphoanhydride bond?(A) DNA(B) RNA(C) ATP(D) AMP(E) None of these
• 4. Which of the following best describes the structure of a nucleosome?(A)DNA wrapped around an octo
• 25. What is the product of the following reaction?   (A) (S)-1,2-propanediol (B) (R)-1,2-propanediol
• 5. Which of the following sequences of DNA is most likely to form Z-DNA?(A) (B) (C) (D)
• 23. Which of the following statements is true?(A) a triple bond is composed of two a bonds and one x
• 24. Which of the following statements best describes BF3 and NF3? (Nole: Geometry refers tothe elect
• 25. Which of the following molecules has a dipole moment?(A)SF4 (B)CF4 (C)XeF4 (D)SF6(E)XcF2
• 26. How many resonance structures does the have?(A)0 (B)1 (C)2 (D)3 (E)4
• 27. The first ionization energy of magnesium is approximately 700 kJ/mol. What is a goodestimate for