Question

what is anaphase responsible for? the chromatids or chromosomes form into two nuclei. the chromosomes separate and move toward opposite ends of the cell. the nuclear envelope breaks down. the chromosomes become visible as paired chromatids.

Explanation:

Anaphase in cell - division is the stage where sister chromatids separate and are pulled to opposite poles of the cell by the spindle fibers. The first option occurs in telophase, the nuclear envelope breaks down in prophase, and chromosomes becoming visible as paired chromatids is in prophase.

Answer:

The chromosomes separate and move toward opposite ends of the cell.