資訊推薦

• 19. 衛生福利部位於忠孝東路6段。(A)O(B)X
• 20. 以最短路徑從松山機場搭計程車至喜來登大飯店須經過徐州路。(A)O(B)X
• 2. a helix of a polypeptide has a pitch of.___nm/turn. (A) 0.34 (B) 0.54 (C) 3.4 (D) 3.6 (E) 5.4.
• 3. Which of the following descriptions about Hb (hemoglobin) is incorrect? (A) One Hb can bind 4 O2
• 4.Which of the following descriptions about the Michaelis-Menten rate equation is incorrect? (A) Km
• 5. To visualize a DNA band,_______ is commonly used after agarose gel electrophoresis. (A) Uridine (
• 6.A DNA segment of 100 base pairs in the Z form. What is its approximate molecular weight? (A)33(B)6
• 7. Absorbance at______ nm is frequently used to determine the concentration of DNA. (A) 200 (B) 260
• 8. Which of the following compounds has the lowest molecular weight? (A) guanine (B) guanosine (C) g
• 9.Which of the following descriptions regarding disaccharide is incorrect? (A) Sucrose is a non-redu
• 10.Which of the following restriction endonucleases is an isoschizomer of Xbal (TCTAGA)?(A) EcoRI ((
• 11.ch of the following proteins is involved in scrapie? (A) collagen (B) elastin (C) kerati (D)prion
• 12. NP-40 is a nonionic surfactant that denatures proteins by disrupting. _______? (A) hydrogen bond
• 13. How many stereoisomers for an aldohexose? (A) 2 (B) 4 (C) 8 (D) 16 (E) 32.
• 14. The chemical bond between ribose and base of a nucleotide is a(n)_______bond. (A) ether (B) este
• 15. Which of the following lipids are especially common in the membranes of brain and nerve cells? (
• 16. In humans, mitochondrial DNA encodes_______ proteins. (A) 37 (B) 22 (C) 13 (D) 2 (E) 0.
• 17. The catalytic triad of serine proteases consists of____,____,and____? (A) Ser, His, and Asp (B)
• 18.Which scientist proposed the model of chemiosmotic coupling? (A) P. Mitcheli (B) J. D. Watson and
• 19.Which of the following amino acids contains only one codon? (A) Ala (B) Lys (C) Tyr (D) Trp (E) A
• 20. B form DNA has______residues per turn. (A) 1 (B) 2 (C) 3 (D) 5 (E) 10
• 21. The Southern blotting method is normally used for detection of (A) proteins (B) DNA (C) RNA (D)
• 22. Which of the following tautomeric forms of fructose exists in sucrose? (A) α-pyranose (B)β-pyran
• 23.Oselta mivir (tamiflu) is effective in treating HIN1 influenza infection, because it has a struct
• 24. Which of the following compounds is frequently used by emergency medical personnel as an antidot