Escherichia coli (E. coli) can carry plasmids, which are small, circular, extra-chromosomal DNA molecules that can independently replicate within the bacterial cell. These plasmids can encode various genes, including those conferring antibiotic resistance or virulence. They are also crucial in molecular cloning, where they serve as vectors for inserting and replicating foreign DNA.
Human T-LYMPHOTROPIC VIRUS-1(HTLV-1)Recombinant plasmid DNA INTEGRATED WITH mRNA TRANSFORMED TO pBR 322 plasmid and packed in virus capsid
