Artificially constructed cloning vector
of the lambda phage
. Cosmids can be packaged in lambda phage particles for infection into E. coli
; this permits cloning
of larger DNA
fragments (up to 45 kb
) that can be introduced into bacterial hosts in plasmid vector
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.