anteroposterior

We start with fundamental structures; anteroposterior axis, triploblasty, segmentation, etc., and then these structures evolved into more complex and derived structures.

Common Descent & Common Design – An Unexpected Outcome 2008

We start with fundamental structures; anteroposterior axis, triploblasty, segmentation, etc., and then these structures evolved into more complex and derived structures.

Common Descent & Common Design – An Unexpected Outcome 2008

A first model describing the three independent systems involved in establishing the anteroposterior axis was presented in an article in SCIENCE, with Frohnhöfer and Lehmann, in 1987.

Christiane Nüsslein-Volhard - Autobiography 1996

A large fraction of the genes identified in both the zygotic and the maternal screens affect either the anteroposterior or the dorsoventral axis.

Nobel Lecture The Identification Of Genes Controlling Development In Flies And Fishes 1995

The refinement of the dorsoventral pattern on the dorsal side involves a long range signalling process, unlike the series of prepatterns of transcription factors observed along the anteroposterior axis (40).

Nobel Lecture The Identification Of Genes Controlling Development In Flies And Fishes 1995

These studies led to the surprising conclusion that the basic features of body organization, such as specification along the anteroposterior axis, and polarity of gastrulation, are apparently conserved in organisms of different animal phyla (21, 22).

Nobel Lecture The Identification Of Genes Controlling Development In Flies And Fishes 1995

The subsequent phenotypic analysis and molecular cloning of many of these genes, and investigation into the interactions of their products, resulted in a rather complete general picture of the mechanisms establishing the anteroposterior and the dorsoventral axis of the early embryo

Nobel Lecture The Identification Of Genes Controlling Development In Flies And Fishes 1995

The identification and analysis of the maternal genes affecting the segmentation pattern revealed that the anteroposterior axis is controlled by three groups of genes, each independently determining a subset of the pattern, the segmented anterior or posterior, or the unsegmented terminal regions of the embryo (35-37).

Nobel Lecture The Identification Of Genes Controlling Development In Flies And Fishes 1995

On this wall are three irregular anteroposterior passages, termed the superior, middle, and inferior meatuses of the nose.

II. Osteology. 5d. The Interior of the Skull 1918

The anteroposterior or conjugate diameter extends from the sacrovertebral angle to the symphysis pubis; its average measurement is about 110 mm. in the female.

II. Osteology. 6c. 2. The Pelvis 1918