Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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explain F' plasmid transfer diagramatically
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Step 1
The F plasmid carries genes for synthesizing proteins that can create connections between donor and recipient cells. The F plasmid is a 100-kb-long circle of double-stranded DNA.
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Step 2
Bacteria with F factor are considered as F+ and those without are considered as F-. The F+ cells have a pilus which is a tube-like structure. This structure allows the cell to contact F- cells. This process of joining through a pilus (F pilus) is known as conjugation. F pilus is a stiff, thin strand of protein that protrudes from the bacterial cell and it helps in the transfer of DNA between bacteria. Therefore, the F plasmid is called a conjugative plasmid.
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