Oogenesis and early development of drosophila title

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Unformatted text preview: mps on the apical surface. It finally leads to the expansion of the internal space. A process that occurs at the eight- cell stage of the mammalian embryo, during whichthe outer cells form tight junctions between them and become closely adherent. Cells derived from the ICM that possess the potential to give rise to any part of the animal. Mammalian ES cells, when injected into a blastocyst, can integrate themselves with the host ICM and become part of the embryo. The epiblast is those cells remaining in the original disc, and the hypoblast is those cells surviving in the subgerminal cavity when the fluid- filled subgerminal cavity forms below the blastodisc in birds. Some cells from the blastodisc delaminate into this cavity, a few of which undergo cell death. The axial organization of the epiblast is thought to require inputs from epiblast and hypoblast both the hypoblast and the marginal zone. The anterior terminal end of the primitive streak, a location Hensen's node rich in complex morphogenetic movements. The daughter cells that come to lie internal to the superficial cells because of the orientation of cleavage planes following the third division. Most of the daughter cells remain on the surface. The ICM gives rise to the embryo proper and the inner cell mass (ICM) amnion. Mice that contain a foreign gene. These are usually generated transgenic mice using genetically modified embryonic stem cells. The layer of superficial cells enclosing the inner cell mass that are given rise to by the cells whi...
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This note was uploaded on 02/04/2014 for the course BIO 205 taught by Professor Cadigan during the Fall '12 term at University of Michigan.

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