切口移位法(nick translation)只能标记线性双链DNA不能标记环状双链DNA。
切口移位(nick translation)标记DNA前,用DNase Ⅰ处理DNA时应注意什么?
After his adventure, Nick expected to be ______ .
A.rich
B.important
C.famous
D.an adventure
Nick was bored because his life wasn't ______ .
A.very pleasant
B.very easy
C.full of amusement
D.interesting
As Nick got off the bus, a man came up to him. This man ______ .
A.was a policeman
B.wanted to kill Nick
C.was Nick's boss
D.wanted the envelope
TUNEL法(terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay;TUNEL assay)
A. on time
B. at times
C. in the nick of time
D.timing