Figure 7-14. Origin and reintegration of the F′ factor, in this case, F′ lac.

Figure 7-14

Origin and reintegration of the F′ factor, in this case, F′ lac. (a) F is inserted in an Hfr strain between the ton and lac+ alleles. (b and c) Abnormal “outlooping” and separation of F occurs to include the lac locus, producing the F′ lac+ particle. (d) An F lac+/lac partial diploid is produced by the transfer of the F′ lac particle to an F lac recipient. (From G. S. Stent and R. Calendar, Molecular Genetics, 2d ed. Copyright © 1978 by W. H. Freeman and Company.)

From: Bacterial conjugation

Cover of An Introduction to Genetic Analysis
An Introduction to Genetic Analysis. 7th edition.
Griffiths AJF, Miller JH, Suzuki DT, et al.
New York: W. H. Freeman; 2000.
Copyright © 2000, W. H. Freeman and Company.

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