11. Sister chromatids at this point are called " daughter chromosomes ". 12. The replication factories perform disentanglement of sister chromatids . 13. The disentanglement is essential for distributing the chromatids into daughter cells after DNA replication. 14. In " nondisjunction ", sister chromatids fail to separate during anaphase. 15. The chromatids are further separated by the physical movement of the spindle poles themselves. 16. In vertebrates, sister chromatid cohesion is released in 2 steps via distinct mechanisms. 17. Examples involve Retrotransposons or unequal sister chromatid exchange. 18. This complex encircles the two sister chromatids and resists the pulling force of microtubules. 19. Meiosis II involves the separation of sister chromatids in both sexual and parthenogenetic species. 20. The two identical copies each forming one half of the replicated chromosome are called chromatids .
