Question

Concentration of skin melanin is controlled by

• A. Heredity
• B. Environment
• C. Both heredity and environment
• D. Food

Answer 1

Answer: (C)

Both heredity and environment

• Melanin is a pigment produced within the skin in melanocytes or skin cells when they are exposed to the sun.
  
• The process by which the pigment melanin is formed by the melanocytes is called melanogenesis.
• The colour of the skin is determined by at least 6 genes.
• Thus, skin colour or complexion is controlled by the environment and is also hereditary.
• So. the correct answer is 'Both heredity and environment'.