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Question
At which stage of Meiosis I does crossing over occur?
At which stage of Meiosis I does crossing over occur?
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Solution
The correct option is C Pachytene
- Pachytene is the third phase of meiosis 1. In pachytene, the exchange of the DNA segments takes place between non-sister chromatids of homologous chromosomes.
- This process is called crossing over and it leads to recombination.
- Chiasma is a region where two homologous chromosomes undergo crossover.
Thus the correct answer is option C.
- Pachytene is the third phase of meiosis 1. In pachytene, the exchange of the DNA segments takes place between non-sister chromatids of homologous chromosomes.
- This process is called crossing over and it leads to recombination.
- Chiasma is a region where two homologous chromosomes undergo crossover.
Thus the correct answer is option C.
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