The given diagram shows the process of conjugation in bacteria.The option that correctly identifies the labelled structure X, cells Y and Z is
Correct answer: B. B
- A. A
- B. B
- C. C
- D. D
Explanation
Structure X is pilus. Bacteria possessing the F plasmid are designated as F+. So Y is F+.Bacteria lacking the F plasmid are designated as F-. So Z is F-.. This makes option B correct. All other options are incorrect.
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