Centrosome movements in klp-7(rm2143) two-cell–stage embryos–category 1. Live cell imaging video of a klp-7(rm2143) two-cell–stage embryo expressing GFP::β-tubulin. Note that at the time point of NEBD in AB the two centrosomes are already fully separated in P1 and still only partially separated in AB, as is the case in the majority of the embryos (77%, n = 13). The video is shown at 10 frames per second.