資訊推薦

• 18. A sequence of amino acids in a certain protein is found to be –Ser–Gly–Pro–Gly–. The sequence is
• 19. Concerning human prion protein amyloid, the protein aggregation is due to the formation of _____
• 20. Which amino acids in proteins can undergo post-translational farnesylation? (A) cysteine (B) gly
• 21. Which of the following vitamins enter the cell nucleus to bind to nuclear receptor and to regula
• 22. In the presence of an enzyme inhibitor, the Vmax decreases and the apparent Km decreases as well
• 23. Which of the following proteins is NOT involved in DNA replication? (A) nuclease (B) gyrase (C)
• 24. Which non-histone chromosomal protein helps holding sister chromatids together immediately after
• 25. Which of the following activities of E. coli DNA polymerase I allows it to remove RNA primers du
• 26. Which glycosidic bond between two monosaccharide molecules is FALSE? (A) α(1→1) (B) α(1→4) (C) α
• 27. Because skeletal muscle do not contain _____, glycogen in skeletal muscle cannot be a source of
• 28. Which of the following conditions concerning de novo purine ribonucleotide synthesis is FALSE? (
• 29. Which compound is NOT an intermediate for the biosynthesis of cholesterol? (A) mevalonate (B) is
• 30. Which of the following statements about lipoproteins is TRUE? (A) Chylomicrons carry the dietary
• 31. In evolutionary biology, what is adaptive radiation, and where is it most likely to occur? (A) I
• 32. In the life cycle of true plants, the _____ are diploid.① gamete ② gametophyte ③ spore ④ sporoph
• 33. Which of the followings is NOT a role of carbohydrates in the extracellular matrix? (A) providin
• 34. How does the sodium-potassium pump contribute to the negative charge inside a cell? (A) by expel
• 35. Which of the followings is a characteristics that can be found in fungi? (A) They perform photos
• 36. Enveloped viruses are sensitive to ethanol. Which of the following viruses cannot be prevented b
• 37. Which of the following plant hormones does NOT regulate seed germination positively or negativel
• 38. Which unique feature is found in the phylum Cnidaria, such as jellyfish and sea anemones? (A) ex
• 39. Regarding prokaryotic gene regulation, what is the function of the lac operon in E. coli? (A) It
• 40. Kranz anatomy is a specialized structure in _____. (A) C4 plants (B) C3 plants (C) CAM plants (D
• 41. Which of the following characteristics is common to all prokaryotes? (A) They possess a nucleus.
• 42. What is a biodiversity hotspot? (A) a region with a moderate level of species diversity (B) an a