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• 23. Gout is caused by ___ over degradation results in accumulation of uric acid.(A) purine (B) pyrim
• 14. Which of the following descriptions regarding the embryonic germ layers is correct?(A) Pituitary
• 24. Which of the following peptides has the largest molar extinction coefficient for UV absorption a
• 25. What main compound is transported from the cytosol to the mitochondria via malate-aspartate shut
• 35. Which of the following is a true distinction between cellular respiration and lactate fermentati
• 26. What enzyme can generate citrulline?(A) NO synthase (B) citrate dehydrogenase(C) citrate oxidase
• 36. Which of the following about cardiac muscle is correct?(A) They contract only when stimulated by
• 45. Which of the following traits do archaeans and bacteria share?1. composition of the cell wall2.
• 27. The Tang Prize in Biopharmaceutical Science was awarded to Dr. Feng Zhang for ________.(A) cance
• 37. Which of the following short-distance transport routes in plants goes through plasmodesmata?(A)
• 55. Which of the following statements regarding John Gurdon's experiments for nucleus transfer
• 46. Asbestos is a material that was once used extensively in construction. One risk from working in
• 28. What amino acid residue is required for the protein region to interact with Src homology 3 (SH3)
• 65. In eukaryotic cells, mRNA modification includes __________.(A) splicing out exons and join intro
• 38. In the process of photosynthesis, which of the following is not involved in the creation of H+gr
• 56. In bird, the sex chromosome presented in egg, rather than sperm, determines the gender of the of
• 47. Which of the following is more likely an application of the concept of molecular clock?(A) estim
• 29. Molecular chaperones assist proteins in the formation of ________.(A) aggregates (B) 3° structur
• 66. What is the appropriate order for oxidation of glucose to CO2, H2O and ATP?1.convert pyruvate to
• 39. X chromosome inactivation is an epigenetic mechanism that silences the majority of genes on one
• 57. Which of the following descriptions regarding circulatory system is correct?(A) The circulatory
• 48. Stem cell transplants may someday be used to treat Parkinson's disease. Researchers are hop
• 30. Supercoiled DNA can be relaxed by ________.(A) catenation (B) intercalation (C) nicking one stra
• 67. Cooperative binding of a ligand to a protein is a form of allosteric binding. Which of the follo
• 40. According to the intermediate disturbance hypothesis, species richness is higher in areas of int