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    Question

    In what stage of meiosis are lamp brush chromosomes

    predominantly observed, and what is their unique feature?
    A Prophase I, presence of secondary constrictions Correct Answer Incorrect Answer
    B Metaphase II, large size Correct Answer Incorrect Answer
    C Diplotene, presence of chiasmata Correct Answer Incorrect Answer
    D Anaphase I, extensive RNA synthesis Correct Answer Incorrect Answer
    E Telophase II, absence of chromomeres Correct Answer Incorrect Answer

    Solution

    Lamp brush chromosomes are observed in the diplotene stage of meiotic prophase. They are characterized by the presence of chiasmata, which indicate sites of genetic recombination.

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