4.Metaphase All of the chromosomes are aligned midway between the spindle poles. A spindle is a dynamic network of microtubules that attaches to and moves chromosomes during nuclear division. Microtubules attach each chromatid to one of the spindle poles, and its sister to the opposite pole.
After chromosomes are formed, during which phase of mitosis do the chromosomes attach to the spindle fibers by their centromeres? 1. anaphase 2. prophase 3. metaphase 4. telophase