Which tissues below are typically derived from the cells on the dorsal surface of a mammalian embryo after gastrulation that express N-cadherins and stop expressing E-cadherins?
A)skin
B)only brain
C)only spinal cord
D)only neural tube
E)brain,spinal cord and neural tube

Question

Quizplus · Accepted Answer

The cells on the dorsal surface of a mammalian embryo after gastrulation that express N-cadherins and stop expressing E-cadherins give rise to the neural tube, which further differentiates into the brain and spinal cord. Therefore, choices B, C, and D are too narrow, while choice A is too broad, as skin is not directly derived from the neural tube. Therefore, the best choice is E, as it includes all the tissues derived from the neural tube.

Which Tissues Below Are Typically Derived from the Cells on the Dorsal