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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Inversion loops are observable during which of the following stages of meiosis?

    Question: Inversion loops are observable during which of the following stages of meiosis?

    Options:

    Diplotene
    Metaphase I
    Pachytene
    Zygotene

    ✅Explanation:Inversion loops are visible during pachytene, the third stage of prophase I in meiosis. During this stage, homologous chromosomes pair up closely, allowing for genetic exchange (crossing over) between non-sister chromatids.

    🔴 Related Terminology:
    -Inversion: A chromosomal rearrangement where a segment of a chromosome breaks, reverses its orientation, and rejoins.
    -Pachytene: The stage of prophase I where homologous chromosomes undergo complete synapsis, allowing for crossing over and visualization of inversion loops.
    -Crossing over: The exchange of genetic material between non-sister chromatids of homologous chromosomes.
    -Chiasmata: X-shaped structures formed at crossover points, visible during diplotene.

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