【简答题】琥珀密码子UAG不对应于任何一个氨基酸,但菌株携带有抑制基因——反密码子突变的tRNA分子,使得一个氨基酸可置于UAG位点上。假设该抑制基因的反密码子与原始的反密码子只有一个碱基的差别,在UAG位点和UAA位点将会插入何种氨基酸?
【单选题】If you resolve to get more exercise, you
A.
do not need to get more exercise.
B.
do not want to get more exercise.
C.
decide that you are really going to exercise more often.
【简答题】在影响药物作用的因素和合理用药过程中,属于药物方面的因素有 A.药物的性质 B.药物的剂量 C.饮食对药物的影响 D.用药时间 E.药物的剂型A.B.C.D.E. E
【单选题】有关蛋白质合成的叙述中,正确的是 [ ]
【单选题】Charles shop docs not sell ______.
【简答题】You can make the best of exercise by integrating some form. of exercise into__________