The first indication of division of labour in the blastomeres appear a...
Division of Labour in Blastomeres
- Blastomeres are the cells formed through cleavage during embryonic development.
- Initially, all the blastomeres are identical and have the potential to develop into any cell type.
- However, as development proceeds, the blastomeres begin to differentiate and specialize in their functions.
- The first indication of division of labour in blastomeres occurs at the gastrula stage of embryonic development.
- The gastrula stage is characterized by the formation of three germ layers - ectoderm, mesoderm, and endoderm.
- Each germ layer gives rise to specific tissues and organs in the developing embryo.
- At this stage, the blastomeres begin to differentiate into specific cell types based on their position and interactions with other cells.
- For example, the cells on the outer layer of the gastrula develop into the ectoderm, which gives rise to the skin, nervous system, and other tissues.
- The cells in the middle layer develop into the mesoderm, which gives rise to muscle, bone, and other connective tissues.
- The cells in the inner layer develop into the endoderm, which gives rise to the digestive and respiratory systems.
- This differentiation and specialization of blastomeres is crucial for the proper development and functioning of the embryo and the adult organism.
The first indication of division of labour in the blastomeres appear a...
After fertilization, zygote undergoes cleavage divisions forming morula, blastula and further divisions result in the formation of the gastrula. The cells at the earlier stage i.e., morula and blastula are not differentiated. But during gastrulation, the cell differentiates and get sepecialized to perform a specific function. It is the stage in embryonic development where the formation of three germ layer takes place due to rearrangement of cells. Morphological changes start to appear in the embryo and different cell types start recognising each other.
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