Zobrazeno 1 - 7
of 7
pro vyhledávání: '"embryonic structures"'
Autor:
Kim, Soyoung
Publikováno v:
GSBS Dissertations and Theses.
Asymmetric cell divisions constitute a basic foundation of animal development, providing a mechanism for placing specific cell types at defined positions in a developing organism. In a 4-cell stage embryo in Caenorhabditis elegansthe EMS cell divides
Autor:
Roy, Nicole Marie
Publikováno v:
GSBS Dissertations and Theses.
Fibroblast growth factor (Fgf) and Retinoic acid (RA) are known to be involved in patterning the posterior embryo. Work has shown that Fgf can convert anterior tissue into posterior fates and that embryos deficient in Fgf signaling lack posterior tru
Autor:
Ashraf, Shovon I.
Publikováno v:
GSBS Dissertations and Theses.
The Snail protein functions as a transcriptional regulator to establish early mesodermal cell fate in Drosophila. Later, in germ band-extended embryos, Snail is considered a pan-neural protein based on its extensive expression in neuroblasts. The evi
Autor:
Klattenhoff, Carla Andrea
Publikováno v:
GSBS Dissertations and Theses.
The studies presented in this thesis addressed mainly two aspects of Piwi-interacting RNA (piRNA) biology in the Drosophilagermline. We investigated the role of the piRNA pathway in embryonic axis specification. piRNAs mediate silencing of retrotrans
Autor:
Cable, Edward Earl
Publikováno v:
GSBS Dissertations and Theses.
Primary chick embryo liver cells were used to explore the regulation of δ-aminolevulinic acid synthase and heme oxygenase, the enzymes that catalyze the rate-limiting reactions of heme anabolism and catabolism, respectively. The general focus of the
Autor:
Bei, Yanxia
Publikováno v:
GSBS Dissertations and Theses.
In a 4-cell C. elegans embryo the ventral blastomere EMS requires polarity signaling from its posterior sister cell, P2. This signaling event enables EMS to orient its division spindle along the anterior-posterior (A/P) axis and to specify the endode
Autor:
Rocheleau, Christian Ernest
Publikováno v:
GSBS Dissertations and Theses.
During embryonic development of the nematode Caenorhabditis elegans, cell fates are specified by asymmetric segregation of cell fate determinants and via cell-cell signaling events. Specification of the eight-cell stage blastomere E, the endoderm pro