Which of the Following Statements About Hfr Cells and Bacterial

question 25

Multiple Choice

Which of the following statements about Hfr cells and bacterial conjugation is false?

• A)An Hfr cell becomes an F^- cell if its integrated F plasmid is excised.
• B)If excision of the F plasmid from an Hfr cell includes some bacterial genes,a partial diploid can result.
• C)The genes that are transferred from an Hfr cell into a recipient cell during conjugation replace the equivalent genes in the recipient cell.
• D)An F' plasmid contains some bacterial genes.
• E)Cells with integrated F' plasmid have two copies of some genes.

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