Answer
Prophase happens when the DNA condenses so that it can be seen clearly and the spindle begins to form outside of the nucleus.
In metaphase, duplicated chromosomes line up by their centromeres. From the centromeres, spindle fibers connect the centromeres to both spindle poles.
Anaphase sees the separation of the sister chromatids and their movement toward opposite ends of the cell along the spindle fibers.
During telophase, the chromosomes spread out and become threadlike chromatin again. Around each set of new chromosomes a nuclear envelope forms, the spindle breaks down, and the nucleolus is once again visible inside the nucleus of each of the daughter cells.
Work Step by Step
Prophase happens when the DNA condenses so that it can be seen clearly and the spindle begins to form outside of the nucleus.
In metaphase, duplicated chromosomes line up by their centromeres. From the centromeres, spindle fibers connect the centromeres to both spindle poles.
Anaphase sees the separation of the sister chromatids and their movement toward opposite ends of the cell along the spindle fibers.
During telophase, the chromosomes spread out and become threadlike chromatin again. Around each set of new chromosomes a nuclear envelope forms, the spindle breaks down, and the nucleolus is once again visible inside the nucleus of each of the daughter cells.
