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      Question

      Crossing over takes place in which stage of cell cycle?

      A Leptotene Correct Answer Incorrect Answer
      B Zygotene Correct Answer Incorrect Answer
      C Pachytene Correct Answer Incorrect Answer
      D Diplotene Correct Answer Incorrect Answer

      Solution

      Pachytene is the third stage of meiosis prophase-1 (a five-stage process). It is preceded by the zygotene stage, where synapsis, i.e. pairing of homologous chromosomes take place.

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