AP BIOLOGY

Detailed explanation-1: -During prophase, the chromosomes condense and centrosomes move to opposite sides of the nucleus, initiating formation of the mitotic spindle.

Detailed explanation-2: -The spindle formation takes place during the prophase stage.

Detailed explanation-3: -Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses.

Detailed explanation-4: -Prophase II: During prophase II, the chromosomes begin to recondense and spindle fibers begin to form once again. These spindle fibers seek out the sister chromatids that are present in the cell. Spindle fibers from one side of the cell attach to one of the sister chromatids.

Detailed explanation-5: -The mitotic spindles formed during prophase are composed of microtubules and have a ropelike structure. The function of the mitotic spindle is to help to equally divide the chromosomes in the parent cell to ensure that equal, identical copies are found in both daughter cells after mitosis is complete.