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Question

Which one of the following is derived from ectoderm?

A
Enamel of teeth
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B
Dentine
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C
Skull
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D
Axial skeleton
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Solution

The correct option is A Enamel of teeth
Teeth form from the cooperative interaction of two germ layers as the ectoderm and ecto-mesenchyme (which is a neural crest derivative).
Enamel of teeth is formed from the ectodermal components, while dentine, pulp, cementum are all derived from ectomesenchyme.
Thus, the correct answer is option (A).

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