1. Spindle fibers form a protein structure that divides the genetic material in a cell.
2. Spindle fibers are found in EUKARYOTIC CELLS and are a component of the cytoskeleton as well as cilia and flagella.
3. Spindle fibers are part of a spindle apparatus that moves chromosomes during mitosis and meiosis to ensure even chromosome distribution between daughter cells.
4. The spindle fibers provide a framework and means of attachment that keep chromosomes organized, aligned and assorted during the entire process of mitosis.