During meiosis, the process of crossing-over must occur during which specific phase?

  1. Prophase I
  2. Metaphase I
  3. Prophase II
  4. Cytokinesis

📝 Detailed explanation

Crossing-over is the exchange of genetic material between non-sister chromatids.
This occurs during the synapsis of homologous chromosomes in Prophase I.
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