Human Genetics and Adaptation

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Multiple Choice

Which of the following characterises melanin?

  1. It enhances the penetration of UV radiation through the skin.
  2. Skin may vary frequently in the amount of melanin it contains.
  3. Individuals with high concentration of melanin in their skin are at a greater risk for skin cancer.
  4. It enhances the penetration of infrared radiation through the skin.
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