Crossing over occurs in this phase where chromatin coils into chromosomes and the (*) centromeres attach to the spindle fibers.
The condensin complex begins this phase, in which gamma-tubulins position the centrosomes. Crossing over occurs in this phase where chromatin coils into chromosomes and the (*) centromeres attach to the spindle fibers. The nuclear membrane breaks down at the end of, for 10 points, what phase, the first of mitosis and meiosis, which comes before metaphase.
The condensin complex begins this phase, in which gamma-tubulins position the centrosomes.
Prophase I