For bacteria that are F⁺, Hfr, F', and F⁻ perform or answer the following. Describe the results of conjugation (i.e., changes in the recipient and the exconjugant) that allow detection of the state of the F factor in a donor strain. ...
Conjugational synthesis of F lac + and Col I DNA in the presence of Rifampicin and in Escherichia coli K12 mutants defective in DNA synthesis When F lac + donors were mixed with irradiated recipient bacteria, there was a stimulation of DNA synthesis in the recipients equivalent to the amount ...
Mol. Gen. Genet. 139:203-212.Leal, J., and J. Marcovich. 1975. Electron microscopic observations of the tsxs gene expression in Escherichia coli K12 F- cells after conjugation with Hfr bacteria. Molec. Gen. Genet. 139:203-212.
increased ultraviolet light sensitivity, altered patterns of DNA degradation after irradiation, inability to support growth of certain λ phage mutants and many others in addition to reduced recipient ability in mating with Hfr bacteria 1 ... TOMIZAWA, JUN-ICHI,H Ogawa - 《Nature New Biology》 被...
Chromosomal exchange and subsequent recombination of the cognate DNA between bacteria was one of the most useful genetic tools (e.g., Hfr strains) for genetic analyses of E. coli before the genomic era. In this paper, yeast assembly has been used to recruit the conjugation machinery of ...
For bacteria that are F⁺, Hfr, F', and F⁻ perform or answer the following. Describe the results of conjugation (i.e., changes in the recipient and the exconjugant) that allow detection of the state of the F factor in a donor strain. ...