Answer:
b. Melanocytes-protect cells in the dermis from damaging effects of sun's rays
Explanation:
Keratinocytes are responsible for the forming tight junctions with nerves of skin. They keep Langerhans cells of epidermis and lymphocytes of dermis in place.
<u>(Option A is incorrect).
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Melanocytes are the cells of the neural crest origin. In epidermis, they form association closely with the keratinocytes via dendrites. Melanocytes are responsible in skin pigmentation.
<u>(Option B is correct).
</u>
Basal cells are undifferentiated and proliferating cells. For the normal skin homeostasis, the daughter cells from basal cell layer migrate upward and begin process of the differentiation.
<u>(Option C is incorrect).
</u>
Merkel cells are located in basal epidermal layer of skin. Merkel cells are essential for the light touch sensation and are found in the skin of vertebrates.
<u>(Option D is incorrect).
</u>
