In most animals, oocyte polarity establishes the embryonic body plan by asymmetrically localizing axis-determining transcripts along the animal-vegetal axis. These transcripts first localize in Xenopus and zebrafish oocytes to the Balbiani body (Bb), a large membrane-less organelle conserved from in...
ORGANISM(S): Danio rerio (Zebrafish) (Brachydanio rerio)