Microbiology The role of plasmids in conjugation was first described by Lederberg and Tatum(46) in – A H.influenzae B Corynebacterium C Pseudomonas D Esch.Coli 💡 Explanation The role of plasmids in conjugation was first described by Lederberg and Tatum(46) in - ✓ Correct Answer: D. Esch.Coli