Figure 2.

Representative images of a) a bipolar spindle with properly aligned chromosomes on the metaphase plate, from a young mare oocyte; b) bipolar spindle showing a reduced pole‐to‐pole length but with chromosomes properly aligned on the metaphase plate, from an old mare oocyte; c) bipolar spindle with increased length showing mild chromosome misalignment (≤5 displaced chromosomes), from an old mare oocyte; d) bipolar spindle showing severe chromosome misalignment (>5 displaced chromosomes), from an old mare oocyte. The scale bar is set at 3 μm.