The role of plasmids in conjugation was first described by Lederberg and Tatum (1946) in which bacteria?
Correct Answer: Escherichia coli
Description: Bacterial conjugation was first described by Lederberg and Tatum (1946) in a strain of E.coli called K12 (carried a conjugative plasmid F) The F factor: The F plasmid, also called F factor, is a transfer factor that contains the genetic information, essential for controlling mating process of the bacteria during conjugation. The F plasmid of Escherichia coli is the prototype for feility plasmids in Gram-negative bacteria. Strains of E. coli with F+ plasmid are called as donors, whereas plasmid are F- behave as recipients.
Category:
Microbiology
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