Question

metaphase sister chromatids line up along the middle of the cell. complete chromosomes disperse and are no longer visible. retry

Explanation:

In cell division, telophase is the stage where chromosomes disperse and become no longer visible as distinct structures. After the separation of sister chromatids (which occurs in anaphase following metaphase), in telophase, the nuclear envelope re - forms around the two sets of chromosomes, and the chromosomes start to de - condense. This de - condensation makes them less visible under a light microscope as distinct, individual chromosomes.

Answer:

telophase