Fig. 2. Nuclear dynamics during the first meiotic division in the rec8 and rec7 mutants. (A) rec8 mutant. Nuclei of strain 57-2262 were stained with Hoechst 33342. Numbers on the right of the images indicate time in minutes. (B,C) rec7 mutant. Nuclei of strain 88-3485 were stained with Hoechst 33342, and two divisions with different outcome were chosen for presentation. Numbers on the left of the images indicate time in minutes. In case of division (B), chromosomes were apparently unevenly distributed between the daughter nuclei. (C) Division resulted in even segregation. Equal numbers of chromosomes moving to opposite poles are clearly discernable at 48 minutes. The arrow indicates a chromosome moving between two poles. Scale bar: 10 µm.