(F) IF of 5-methyl and 5-hydroxy-methyl cytosine staining of wild-type (n=42), Daxxm-z+ (n=14) and Ring1m-z+; Rnf2m-z+ (n=6) zygotes with lagging chromosomes. Yellow arrowheads indicate lagging chromosomes. Data information: All scale bars 10µm. 