Without the diagram, it's difficult to determine which phase of mitosis is being represented. However, I can describe the key characteristics of each phase:
-
Prophase: Chromatin condenses into visible chromosomes, the nuclear envelope begins to break down, and the spindle fibers start to form.
-
Metaphase: Chromosomes line up along the metaphase plate in the center of the cell, and spindle fibers attach to the centromeres of the chromosomes.
-
Anaphase: Sister chromatids are pulled apart to opposite poles of the cell by the spindle fibers.
-
Telophase: Chromosomes arrive at the poles, the nuclear envelope reforms around each set of chromosomes, and the chromosomes begin to de-condense.
If you can describe the diagram, I can help identify which phase it represents!