Subdivision of the embryo along the anterior/posterior axis into anterior, posterior and terminal regions.

The process in which a potassium ion is transported across a mitochondrial membrane, into or out of the mitochondrion.

The hierarchical steps resulting in the progressive subdivision of the anterior/posterior axis of the embryo.

The process in which a guanine nucleotide is transported across a mitochondrial membrane, into or out of the mitochondrion.

OBSOLETE. (Was not defined before being made obsolete).

The specification of the dorsal/ventral axis of the embryo, through the products of genes expressed in the zygote.

The directed movement of calcium cations into the vacuole across the vacuolar membrane.

Specification of the anterior (head and thoracic segments) of the embryo by the gap genes; exemplified in insects by the actions of hunchback gene product.

A stable heterodimer of angiogenin and placental ribonuclease inhibitor; interaction between angiogenin and PRI prevents angiogenin binding to its receptor to stimulate angiogenesis.

The directed movement of copper ions out of the vacuole across the vacuolar membrane.

The specification of the anterior/posterior axis of the embryo by products of genes expressed in the zygote; exemplified in insects by the gap genes, pair rule genes and segment polarity gene cascade.

The specification of the anterior/posterior axis of the embryo by the products of genes expressed maternally and genes expressed in the zygote.

The regulated release of a prostaglandin, any of a group of biologically active metabolites which contain a cyclopentane ring, from a cell or a tissue.

OBSOLETE. The activation of genes encoding transcription factors in the central region of an insect embryo by a combination of maternal regulatory signals and interactions among themselves; exemplified by the activation of expression of the Drosophila Kruppel gene by the hunchback and bicoid gene products.

Specification of the central (trunk) regions of the embryo by the gap genes; exemplified in insects by the actions of the Kruppel gene product.

The regionalization process in which the posterior (abdominal) regions of the embryo are specified by the gap genes.

The directed movement of a cell or organism towards a source of light.

The directed movement of a motile cell or organism towards a higher level of a physical stimulus involved in energy generation, such as light, oxygen, and oxidizable substrates.