Prophase I is stage of meiosis is crossing over most likely to occur.
- During prophase I is when crossing over takes place. This is the sole time the cell has to transport DNA segments between the homologous pair since prophase I is the only time when the complex that momentarily forms between homologous chromosomes is present.
- When the paired homologs, or chromosomes of the same kind, are lined up during meiosis, crossing over is a biological process that takes place.
- Therefore, if two Chromosome 1s are lined up, one of them will break, and the other will reanneal with a break in a comparable location on it.Crossing over:
- In meiosis, the term "crossing over" describes the transfer of genetic material or chromosome segments between non-sister chromatids.
- This genetic process involves the exchange of homologous chromosomes and homologous portions of corresponding chromosomes.
- The exchange of genetic material between non-sister chromatids of homologous chromosomes occurs during crossing over, an enzyme-mediated process.It happens during meiotic prophase I pachytene stage.
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