| 21. | In the host, WSSV infects a wide variety of cells from ectodermal and mesodermal origin.
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| 22. | The esca is ectodermal in origin whereas the barbel organs may be derived from the mesoderm.
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| 23. | Cells from both the mesodermal and the ectodermal tissues contribute to the formation of the eye.
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| 24. | This is similar to the embryonic apical ectodermal ridge, which forms during normal limb development.
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| 25. | The animal cap forms the roof of the blastocoele and goes on primarily to form ectodermal derivatives.
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| 26. | A major focus is basic investigation of ectodermal appendage development and the study of human ectodermal dysplasias.
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| 27. | A major focus is basic investigation of ectodermal appendage development and the study of human ectodermal dysplasias.
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| 28. | Now, as the ectoderm continues to elongate, the ectodermal cells of the neural plate fold inward.
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| 29. | Another cadherin, E-cadherin, is expressed by ectodermal cells in the process of neural plate development.
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| 30. | Unlike the larger tracheae which are derived of ectodermal stem cells, tracheoles do not molt with the insect.
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