问题
选择题
下图为大肠杆菌某基因的一条脱氧核苷酸链的碱基序列，以下变化对该基因所控制合成的多肽(以此链为模板)的氨基酸序列影响最大的是(不考虑终止密码子)
A．第6位的C被替换为T
B．第9位与第10位之间插入1个T
C．第100、101、102位被替换为TTT
D．第103至105位被替换为1个T
答案
答案：B
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下图为大肠杆菌某基因的一条脱氧核苷酸链的碱基序列，以下变化对该基因所控制合成的多肽(以此链为模板)的氨基酸序列影响最大的是(不考虑终止密码子)
A．第6位的C被替换为T
B．第9位与第10位之间插入1个T
C．第100、101、102位被替换为TTT
D．第103至105位被替换为1个T
答案：B
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| As the train came to the seaside town, I happened to 1 the seat behind mine. Sitting there was a man who many years before had been my neighbor. I remembered it took hours to 2 him once he began a talk. I was not at all 3 when he went to live in another part of London. We hadn't met since then, 4 to meet him again. Fortunately at that moment he was much too busy talking to the man opposite him 5 me. I turned back, took down my two suitcases (行李箱) and carried them to the far end of the train in order to get off 6 it stopped. When I reached the hotel, I went 7 to my room and rested there until it was time for dinner. Then I went down to the dining-room and ordered a drink. I had hardly raised the glass to my mouth when an all too familiar (熟悉的)_ 8 said hello to me. I 9 my tiresome neighbor after all. He grasped me by the hand and insisted that we should 10 a table in the dining-room. | ||||||||||||||||||||||||||||||||||||||||
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