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24 June, 01:25

A 40-year-old, blond, blue-eyed woman has found an irregular, brown-pigmented lesion on her shoulder. She admits enjoying the sun and outdoor activities. A biopsy shows the lesion is malignant.

What is the embryonic origin of the cells that gave rise to this malignancy?

A. neural crest

B. dermatomal mesoderm

C. ectoderm

D. intermediate mesoderm

E. lateral mesoderm

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  1. 24 June, 03:07
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    Neural crest -

    Explanation:

    Neural crest -

    The neural crest is those temporary sets of cells that are stick to particular vertebrates that arise due to the embryonic layer of germs. Neural crest provides a way to produce PNS (peripheral nervous system).

    These cells are migratory cells that can develop into different cells tissue all over the body.
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