Question

Explain the process of morphogenetic movement during gastrulation.​

Answer 1

Basic Mechanism in Gastrulation:

The process of gastrulation involves fol­lowing three cellular activities, cell-move­ment, cell-contact and cell-division. All these mechanisms are carried in a nicely co-ordi­nated and integrated way.

Number of fac­tors are believed to be responsible for this coordination, but it has not been possible to pin point the final answer. It is un­deniable that this process is controlled largely by intrinsic factors which are correlated with the external as well as internal conditions.

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Answer 2

Morphogenitic movement consists of several basic cellular deformations and movements, including the invaginaton movement, in which contraction of one side of the embryo causes bending and encourages epithelial cells to extend inward into the embryo, the extension movements caused by the rearrangement of epithelial.

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