Movie of anaphase B (spindle elongation) of meiosis I in primary spermatocytes of the crane-fly Nephrotoma suturalis. Time-lapse polarization microscopy using a Nikon Microphot SA, equipped for liquid crystal polarized light microscopy (LC-PolScope, CRi, Woburn Massachusetts) 60x/1.4 PlanApo oil immersion objective, 1.4 NA oil imm. condenser, with 2.0x zoom lens. Images captured every 30 sec over 70 min using a QImaging Retigo EXi CCD camera. Raw images were processed using 4-frame algorithm (Shribak and Oldenbourg, 2003). The time series of images on which the movie is based is included in this grouped set.
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