E. coli strains that are Hfr
A) have a low frequency of recombination.
B) are susceptible to infection by bacteriophage.
C) cannot be made competent.
D) contain the F factor integrated in the bacterial chromosome.
E) are easily mutated.

Question

Quizplus · Accepted Answer

Hfr strains have the F factor integrated into their chromosome, allowing them to transfer genetic material at a high frequency during conjugation.

E. Coli Strains That Are Hfr