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Melanin model questions


Melanin has a lot of similarities with proteins, and, while not technically a protein, itself, it is made by proteins.  Different versions of the proteins that make melanin can make different forms of the pigment.  Natural human hair is colored by 2 forms of melanin: pheomelanin and eumelanin.  Use the model to see which types of melanin are in which hair colors (and how much of each is there).  

 

To check the melanin levels in each hair color, choose a hair color, click “Setup” then “check-protein-quantities” and record the data.


Questions

Please answer the questions below.

Record the levels of eumelanin and pheomelanin in the table for at least 2 individuals of each hair color in the table.  Take a screenshot of your table and upload it here.

 

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What do each of the dots in the graph represent?


Based on your data, what is the trend of pheomelanin levels with regards to hair color?


Based on your data, what is the trend of eumelanin levels with respect to hair color?


What evidence did you use to answer the last 2 questions?


SAQ: What melanin do you think Lucy (left in the picture above) has more of (eumelanin or pheomelanin)?  Maria (right)?  What evidence did you use to answer this question?


Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.