AP BIOLOGY

Detailed explanation-1: -Sister chromatids separate during anaphase in a three-stage program as directed by interaxis bridges.

Detailed explanation-2: -In anaphase II, the sister chromatids separate and are pulled towards opposite poles of the cell. In telophase II, nuclear membranes form around each set of chromosomes, and the chromosomes decondense.

Detailed explanation-3: -Separation of the paired sister chromatids is required for poleward motion in anaphase. Chromatid separation results from the proteolytic degradation of components that link the chromatids at the centromere.

Detailed explanation-4: -In anaphase, the sister chromatids separate from each other and are pulled towards opposite ends of the cell. The protein “glue” that holds the sister chromatids together is broken down, allowing them to separate. Each is now its own chromosome. The chromosomes of each pair are pulled towards opposite ends of the cell.

Detailed explanation-5: -The mitotic spindle is made of many long proteins called microtubules, which are attached to a chromosome at one end and to the pole of a cell at the other end. The sister chromatids are separated simultaneously at their centromeres.