Bluescript
II
KS - which is derived from pUC19 and is 2961 bp (bp = base Pairs) long. The KS designation indicates the orientation of polylinker, such that the transcription of lac Z gene proceeds from the restriction site for KpnI to that for SacI.
It may be noted that it has the following features:
(i)a multiple cloning site (MCS) flanked by TJ and T7 promoters to be read in opposite directions On the two strands,




