Results 241 to 250 of about 29,170 (291)

Breast assessment using next generation handheld ultrasound device based on silicon chips: a pilot study in senology. [PDF]

open access: yesArch Gynecol Obstet
Plöger R   +6 more
europepmc   +1 more source

The Polarity of the Dorsoventral Axis in the Drosophila Embryo Is Defined by an Extracellular Signal

open access: yesCell, 1991
Twelve maternal effect loci are required for the production of Drosophila embryos with a correct dorsoventral axis. Analysis of mosaic females indicates that the expression of the genes nudel, pipe, and windbeutel is required in the somatic tissue ...
Siegfried Roth   +2 more
exaly   +2 more sources
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Perspectives on leaf dorsoventral polarity

Journal of Plant Research, 2010
Leaves occur in a vast array of shapes and sizes, with complex diversity contributing to optimization of the principal function of photosynthesis. The program of development from a self-renewing stem cell population to a mature leaf has been of interest to biologists for years.
Dóra, Szakonyi   +2 more
openaire   +2 more sources

Dorsoventral patterning in Drosophila oogenesis

Current Opinion in Genetics & Development, 1994
Dorsoventral polarity in the egg chamber of Drosophila involves the localization of maternal gurken RNA to the dorsal side of the oocyte. The gurken protein has homology to secreted growth factors and may bind to the torpedo/DER receptor tyrosine kinase present on the adjacent follicle cells.
T, Schüpbach, S, Roth
openaire   +2 more sources

The Site of Fertilisation Determines Dorsoventral Polarity but Not Chirality in the Zebra Mussel Embryo

open access: yesZygote, 1998
The dorsoventral polarity of unequally cleaving spiralian embryos becomes established at an early stage. The factors determining the position of the dorsoventral axis are still unknown.
Adriaan W C Dorresteijn
exaly   +2 more sources

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