What do you understand by fate Map? Explain fate map of chick with the help of diagram
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Answer:
The fate map of chick (Fig. 5.34) reveals that the cells of the epiblast are organised around the notochord and nervous system. ... The cells at the anterior part of the epiblast form the ectoderm, while the cells at the posterior side gives rise to mesoderm (body proper), endoderm and extra-embryonic mesoderm.
Answer:
Explanation:
Concept:
Fate map definition:
A representation of an egg or blastula that shows the future development of each cell or region is called a "fate map." In the majority of embryological experiments, fate maps are a vital tool. They notify scientists of which parts of the embryo will typically develop into which larval or adult structure. Cytogeny or cell lineage studies refers to the examination of each blastomere's destiny following the first and second cleavage.
Fate map of chick:
Before reading the fate map of the chick, one should first understand how the region pellucida and area opaca were formed, as well as how the hypoblast and epiblast were organised. The analysis of the aforementioned formations reveals that the hypoblast contributes to the production of some of the exterior membranes but does not provide any cells for the development of the embryo itself.
Recent research has made it possible to create the destiny map of the chick epiblast using cell adhesion molecules (CAMs). The epiblastic cells create all three of the embryo's germ layers. A sizeable amount of extra-embryonic (mesoderm) membrane is also formed by the epiblast.
The notochord and nervous system are organized around by the epiblast's cells, according to the chick's fate map . A knob-shaped structure towards the anterior side is the neural ectoderm. Ectoderm is created by the cells in the epiblast's front region, whilst mesoderm (the body's actual tissue), endoderm, and extra-embryonic mesoderm are created by the cells in the epiblast's posterior region.
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