题目内容

江泽民同志认为,坚持党的领导,核心是党的纯洁性。

A. 对
B. 错

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Once cosmids are inside the E.coli cells, they don’t generate phage but are propagated as plasmids.__________

A.True
B.False

Which size of the insert is accepted by the cosmids? __________

A. 10-20 kbp
B. 35-45 kbp
C. 50-60 kbp
D.100-120 kbp

The plaques formed by M13 infection are called as __________

A.retarded plaques
B.true plaques
C.pseudoplaques
D.lysogenized plaques

The main advantage of phagemid is that it can be used for the generation of single or double stranded products without recloning. __________

A.True
B.False

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