What Is the Difference Between an Hfr Strain and an F-Prime

question 9

Multiple Choice

What is the difference between an Hfr strain and an F-prime strain of Escherichia coli?

• A) The F-prime strain is not able to convert the recipient strain to F⁺.
• B) The F-prime strain is able to transfer any gene on the chromosome to the recipient cell.
• C) The F-prime strain has an F⁻ phenotype.
• D) The Hfr strain is able to transfer more genes to the recipient than the F-prime strain.
• E) The Hfr strain is unable to mate with an F⁻ strain.

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