Grossmont College What Is the Function of Melanin in Humans Questions
Question Description
Please View the short film “The Biology of Skin Color.” and answer the five questions.
The Biology of Skin Color HHMI BioInteractive Video
Make sure to read the section on skin color variation in Chap. 14. Then answer the questions below. Only use the film and the text–do not use or cite from any other sources.
1. What is the function of melanin in humans? What is the function of melanin in other species?
2. According to the film, why is there a lack of diversity in the MC1R allele among African populations?
3. According to the film, why was dark skin selected for in regions close to the equator?
4. Describe the selective pressure favoring light skin in regions far from the equator.
5. Which human populations living in which environments are most at risk for rickets today and why?
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