problem in PCR clonong

czlq at czlq at
Thu Jul 31 11:42:39 EST 1997

I have been stoped by a simple PCR cloning work.I have chosen pCR.script and pBluescript vectors and cloned my PCR fragments 
into the vector. Everytime I got some white colones ,but none of them have insert.  I was wondering why the  ratio of this false 
conoles  appeared so high ? The PCR product I used are either the original PCR product or PCR product    purified  by ethanol 
precipitation .If anybody can help me solving this problem, I will very appreciate. Thanks a lot in advance.


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