Cohesins , the proteins that are thought to anchor sister chromatids to one another before anaphase, must be present during DNA replication if cohesion is to be established. In the 4 August
The foot of the male diving beetle (Acilius spp.) is covered in suction cups that latch onto a female during mating. This colorized stack of confocal micrographs took fifth place in the Nikon Small World photo competition.