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- Current: Jun 18, 2023.
Crossing over
Crossing over is the exchange of a part of chromatids between two homologous chromosomes.
Crossing over takes place during the prophase of meiosis I at chiasmata.
Definitions in the literature
- the exchange of corresponding segments of the chromatids of the two homologous chromosomes during meiosis I; occurs at chiasmata [1].
- Exchange of genetic material between homologous but nonsister chromosomes [2].