Question

    In bacteria, which of the following mechanisms primarily

    contributes to genetic variation?
    A Binary fission Correct Answer Incorrect Answer
    B Chemotaxis Correct Answer Incorrect Answer
    C Osmotic lysis Correct Answer Incorrect Answer
    D Conjugation Correct Answer Incorrect Answer

    Solution

    Bacterial conjugation involves the direct transfer of DNA (usually plasmids) between bacteria through a pilus, promoting genetic diversity. Key Points: • Involves F plasmids and sex pili. • Increases antibiotic resistance spread.

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