The hierarchical steps resulting in the progressive subdivision of the anterior/posterior axis of the embryo. [ https://www.worldcat.org/search?q=bn%3A0879694238 http://fly.ebi.ac.uk/allied-data/lk/interactive-fly/aimain/1aahome.htm ]

This is just here as a test because I lose it

Term information

has obo namespace

biological_process

id

GO:0007350