Cell cycle. Tense spindles can relax.
Murray
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AW
D000818:Animals; D001696:Biomechanical Phenomena; D002875:Chromosomes / Q000502:physiology*; D006110:Grasshoppers; D018386:Kinetochores / Q000502:physiology; D008870:Microtubules / Q000502:physiology; D008938:Mitosis / Q000502:physiology*; D009987:Orthoptera; D008941:Spindle Apparatus / Q000502:physiology*