High School

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Exposure to ultraviolet light darkens skin by stimulating the synthesis of:

A. melatonin
B. carotene
C. melanin
D. cyanin

Answer :

Answer:

c.melanin

Explanation:

UV radiation induces immediate pigment darkening (IPD) by chemical modification of melanin, and possibly spatial redistribution of melanosomes in keratinocytes and melanocytes (7). UV exposure also leads to delayed tanning (DT) by new synthesis of melanin over several days after UV exposure and persists for weeks (8).

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