Kinetochores of the paired chromatids line up across the equatorial plates of each cell.
9 The chromatids finally separate, becoming chromosomes in their own right, and are pulled to opposite poles. Because of crossing over in prophase I, each new cell will have a different genetic makeup.
tThe homologous chromosomes line up on the equatorial (metaphase) plate.
5 The homologous chromosomes (each with two chromatids) move to opposite poles of the cell.
The chromosomes gather into nuclei, and the original cell divides.
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.