(中山大学2009年考研试题)RNA病毒的复制通常不需要引物。
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(四川大学2007年考研试题)tRNA在发挥其功能时的两个重要部位时( )。
A. 反密码子臂和反密码子环
B. 氨基酸臂和D环
C. TψC环与可变环
D. TψC环和反密码子环
E. 氨基酸臂和反密码子环
For Questions 1-5, you will hear the recording of the life of Jane Austen. While you listen, fill out the table with the information you have heard. Some of the information has been given to you in the table. Write only 1 word in each numbered box. You will hear the recording twice. You now have 25 seconds to read the table below.Information About the Life of Jane AustenThe date of the birth of Jane Austen is 16th of______ 1775. 1 The number of her brothers and sisters is ______. 2 All of her novels were published without her ______on it. 3 She died in ______. 4 Her last novel was left ______. 5
(中山大学2007年考研试题)原核生物基因组包括少量的非转录DNA,如复制和转录的调控区域。
A. 正确
B. 错误
(中山大学2007年考研试题)真核生物基因组中通常有数百个rRNA基因拷贝。
A. 正确
B. 错误