One of two hemispheres of the embryo at the zygote or blastula stage[WP,modified]. [ http://en.wikipedia.org/wiki/Polarity_in_embryogenesis https://github.com/obophenotype/uberon/issues/153 ]
Term information
early_development
Like many of the early_development classes in this ontology, this class requires review for its applicability across vertebrates. See the tracker item for further discussion.