The neural tube of vertebrates develops during morphogenesis of the nervous system by the
A)folding of ectoderm tissue.
B)migration of mesoderm cells.
C)fusion of ectoderm and mesoderm.
D)contraction of the endoderm away from the mesoderm.
E)extension of endoderm into a thin spinal column.

Question

Quizplus · Accepted Answer

The neural tube of vertebrates develops by the folding of ectoderm tissue. As the neural plate forms, it begins to invaginate or fold inwards, eventually fusing at the midline to form the neural tube. This process is known as neurulation and results in the formation of the brain and spinal cord. Mesoderm cells play a role in the formation of the notochord, which provides structural support for the developing neural tube, but they do not directly contribute to the formation of the tube itself. The endoderm does not play a role in neural tube formation.

The Neural Tube of Vertebrates Develops During Morphogenesis of the Nervous