pGEM-3Zf(-) Vector from Promega

Features:
Blue/White Screening: Allows the easy identification of recombinant clones.
Versatile: These vectors can be used for standard cloning, single-stranded DNA production and in vitro transcription from SP6 and T7 RNA polymerase promoters flanking the multiple cloning region.
Convenient: Multiple cloning site provides a selection of restriction sites for cloning.

Vector Size:
3197 bp