What do centromeres attach to during metaphase

spindle fibers

Explanation:

There are structures called spindles, which are long fibers that stretch out from the edge of the cell on either side and pull the chromosomes apart, separating them at the centromere, right in the middle. During metaphase, the cell is preparing for this process by attaching to the centromeres

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.

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