Tham khảo tài liệu 'sat ii biology episode 2 part 8', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | PRACTICE TEST 3 TEST 3 Continued 96. All of our cells contain protooncogenes that may turn into oncogenes which are cancer genes. The best explanation for protooncogenes is that they A came into our cells from a viral infection of our ancestors. B arose from plasmids that have been inserted into bacteria and now reside in us. C are DNA junk with no known function. D turn into oncogenes as we age. E help regulate cell division. 97. In genetic engineering it is necessary to cut DNA out of bacteria and eukaryotes. To insert the human insulin gene into a bacteria one should use A two different restriction enzymes so that the pieces won t reanneal. B the same restriction enzyme so that both pieces will have the same sticky ends. C methylated bacterial DNA so that only some of it will be spliced. D two different ligases to reanneal the DNA. E a hot water bath at 55 degrees centigrade so that the reaction will happen faster. 98. Watson and Crick used all of the following information in elucidating the physical structure of DNA EXCEPT A X-ray crystallography. B the Meselson-Stahl experiment. C Chargoff s rules. D the different sizes of purines and pyrimidines. E the transforming principle of Avery et al. 99. Which of the following organelles is out of order from an endomembrane point of view A nucleus B vesicles C golgi apparatus D endoplasmic reticulum E plasma membrane 100. The products of the light reactions or photophosphorylation in photosynthesis are A oxygen and water. B oxygen and ATP. C oxygen ATP and NADPH. D water ATP and NADPH. E water ATP and NADP H . STOP If you finish before the hour is up you may review your work on this test only. You may not turn to any other test in this book. Peterson s SAT II Success Biology E M ẸỊD ANSWERS AND EXPLANATIONS QUICK-SCORE ANSWERS 1. C 11. A 21. D 31. A 41. D 51. B 61. C 71. E 81. B 91. B 2. C 12. C 22. B 32. C 42. A 52. D 62. A 72. D 82. A 92. D 3. A 13. D 23. D 33. B 43. D 53. C 63. B 73. A 83. E 93. D
