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  1. Genetic Transfer and Mapping in Bacteria
    1. Bacteria can transfer genetic material during conjugation
    2. Hfr strains contain an f factor integrated into the bacterial chromosome
    3. Conjugation experiments can be used to map genes along the e. Coli chromosome
    4. A detailed genetic map of the e. Coli chromosome has been obtained from many conjugation studies
    5. Bacteriophages can also transfer genetic material from one bacterial cell to another in the process of transduction
    6. Cotransduction can be used to map genes that are within 2 minutes of each other
    7. Bacteria can also transfer genetic material by transformation
    8. Horizontal gene transfer is the transfer of genes among different species
  2. Intragenic Mapping in Bacteriophages
    1. Mutations in viral genes can alter plaque morphology
    2. A complementation test can reveal if mutations are in the same gene or in different genes
    3. Intragenic maps were constructed using data from a recombinational analysis of mutants within the rii region
    4. Deletion mapping can be used to localize many rii mutations to specific regions in the riia or riib genes
    5. Intragenic mapping experiments provided insight into the relationship between traits and molecular genetics





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