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Section: Genetics » Sexuality and Recombination in Bacteria and Viruses
 
 
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  Mechanism of chromosome transfer
 
     
 
Content
⇒ Sexuality and Recombination in Bacteria and Viruses
⇒ Three Methods for Transfer of Genetic Material 
⇒ Sexual conjugation in bacteria 
⇒ Culture media and mutant strains
⇒ Discovery of gene transfer
⇒ Discovery of linkage in bacteria
⇒ Donor and recipient strains
- Mechanism of chromosome transfer
- Physical structures involved in chromosome transfer
⇒ Linkage maps in bacteria
⇒ Conjugation mapping through interrupted mapping
⇒ Circular linkage map
⇒ Linkage information from transformation
⇒ Recombination after gene transfer
⇒ High resolution mapping
⇒ Linear order of genes
⇒ Replication and recombination in viruses 
⇒ Replication of bacteriophages
⇒ Lysogenic bacteria
⇒ Transduction
⇒ Recombination in viruses
⇒ Circular genetic maps in viruses

If the Hfr or F+ donates its chromosome to F- during conjugation, the donor should actually die after conjugation. But this does not happen. There is evidence that Hfr chromosome replicates shortly before or during conjugation and only one of the two strands is transferred to F- cell and gets replicated there. This leaves a complete chromosome in Hfr or F+ even after conjugation.

 
     






     
     
 
 
     
 
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