QUESTION 12 Which of the following statements about genetic exchange in bacteria is NOT true? A....
QUESTION 12
Which of the following statements about genetic exchange in bacteria is NOT true?
A. In conjugation there has to be a physical connection between the donor cell and the recipient cell.
B. Antibiotic resistance can be transferred from one bacterial cell to another by conjugation.
C. Interrupted conjugation results in the production of Hfr strains.
D. Plasmids do not have to integrate into the host cell chromosome in order to be replicated.
E. The order of gene transfer is not the same for different Hfr strains.
Homework Answers
The false statement is option C- Interrupted conjugation results in the production of Hfr strains.
Explanation: Hfr strains are formed when F plasmid become integrated into the bacterial chromosome.
In conjugation there must be physical contact between two partners and antibiotic resistance quickly transferred by conjugation. Plasmids can replicate independently in bacteria cell as it contains separate oriC. And the order of gene transfer depends on the starting site of conjugation, so orger of gene transfer is not the same for different Hfr strains.
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