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Unformatted text preview: chromosomes must be copied before mitosis can proceed. Humans have 23 pairs of homologous chromosomes. 7. sister chromatids - two identical copies of an original homologous chromosome produced after the DNA replicates. 8. cytokinesis - the division of the cytoplasm that follows mitosis, to form the two new cells. 9. centromere - an area where the sister chromatids are held together. 10. mitotic spindle - microtubule structure that directs chromosome movement during cell division. 11. centriole - an organelle that possible organizes the mitotic spindle during mitosis....
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- Fall '10