Which method of Genetic Recombination is illustrated in the Diagram?

Which method of genetic recombination is illustrated in the diagram?

Genetic recombination in the most common diagrams, especially those used in biology textbooks, is bacterial conjugation. Bacterial conjugation is the direct transfer of DNA from a donor bacterial cell to a recipient bacterial cell by means of a physical bridge known as a pilus. The F (fertility) plasmid is most commonly the example given in these diagrams, illustrating how the donor cell uses the pilus to transfer genetic information to the recipient so that it can have genetic diversity without reproduction.
 

Explanation:
 

In bacterial conjugation, the F? donor cell has a plasmid that contains pilus development genes. When it conjugates with an F? cell, it copies and transfers the plasmid DNA so that the recipient can gain new traits such as antibiotic resistance or metabolic activity. Horizontal gene transfer is critical to microbial evolution and adaptation.

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Which Sentence must be revised to eliminate the Preposition at the End?