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Question

Assertion :Nerve cells arise from the neural plate of embryonic endoderm and serve as the structural and functional units. Reason: Nerve cells are highly excitable cells specialized for impulse conduction known as neurons.
  1. Both assertion and reason are correct and reason is the correct explanation for assertion.
  2. Both assertion and reason are correct but reason is not the correct explanation for assertion.
  3. Assertion is correct but reason is incorrect.
  4. Assertion is incorrect but reason is correct.

A
Assertion is correct but reason is incorrect.
B
Both assertion and reason are correct and reason is the correct explanation for assertion.
C
Both assertion and reason are correct but reason is not the correct explanation for assertion.
D
Assertion is incorrect but reason is correct.
Solution
Verified by Toppr

During the stage of neural plate formation the embryo consists of three cell layers, the ectoderm, that eventually form the skin and neural tissues, the mesoderm, that forms muscle and bone, and the endoderm, that will form the cells lining the digestive and respiratory tracts. Hence, ectoderm instead of endoderm is responsible for the formation of nerve cells. The part of the endoderm
The highly excitable cells specialised for impulse conduction are called nerve cells or neurons. So, the correct answer is option D.

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