Three pairs of bacterial cells with the given genotypes undergo conjugation. Place match the genotype of each cell after conjugation to its initial genotype. F+ x F- Hfr x F- F' x F- Answer Bank F+ F- Hfr F' What is the role of the F-factor in conjugation? It allows auxotrophic bacterial cells to survive on minimal medium so that conjugation can occur. It contains genes that force recombination between the donor and recipient chromosomes. It contains genes necessary for the formation of the pilus. It contains genes necessary for replication of the donor's F plasmid. It degrades the chromosome of the recipient cell after conjugation.
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Ft X F: In this case, the F+ cell (donor) transfers the F factor to the F- cell (recipient) during conjugation. After conjugation, both cells become F+. Show more…
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John N.
In respect to bacteria conjugation, when a new F factor becomes integrated into the chromosomes of an F- (f minus) cell, the cell becomes an Hfr (High frequency recombination) cell. If this Hfr cell mates (conjugates) with an F- (F minus) recipient, what are the possible outcomes following this mating? (Choose all that are correct) A. The recipient cell will remain an F- cell. B. The recipient will become an Hfr cell. C. The donor cell will lose its F plasmid. D. The recipient cell will become an F+ cell. E. The recipient cell may become a recombinant. F. The donor will remain an Hfr.
Madhur L.
A bacterial cell can donate DNA during conjugation when it a. produces competence factors. b. contains an F factor. c. is virulent. d. has been infected by a bacteriophage. e. All of the above allow a bacterial cell to donate DNA during conjugation.
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