The woman with golden hair was taken away by the security guards on()of being a criminal.
A. suspect
B. suspicion
C. doubt
D. belief
Seeing that the last bus was leaving, he made a ()for it while shouting "Wait! Wait!"
A. drive
B. dash
C. race
D. relay
下列不属于核酶作用方式的是()。
A. 异体催化剪切
B. 自体催化剪切
C. 第一组内含子自我剪接
D. 第二组内含子自我剪接
E. 第三组内含子自我剪接
用[α-32P]dATP标记一个DNA片段,需用()。
A. 多核苷酸激酶
B. DNA连接酶
C. DNA聚合酶
D. 逆转录酶
E. 磷酸化酶