Which stage of mitosis has all chromosomes lined up midway between the poles?

1. Each stage of mitosis has a signature chromosome arrangement. 2. One stage has them all in a single plane. 3. During metaphase, all the chromosomes are aligned in a plane called the metaphase plate, or the equatorial plane, midway between the two poles of the cell. 4. In anaphase they have already begun to move apart. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 10 'Cell Reproduction', sections 10.1-10.5_