What evidence suggests that different mutations occurred independently?
View the Short Film “Got Lactase – The Coevolution of Genes and Culture”
Provide detailed answers to the following questions. Be sure that you use complete sentences
and explain your points completely for full credit.
1. Detail why the enzyme lactase is important for the digestion of milk.
2. How can an individual be tested for the presence of lactase?
3. What evidence suggests that different mutations occurred independently?
4. What is one of the possible reasons for natural selection to select for individuals which
maintain lactase persistence as adults?
5. What is the change in environment that accounts for the selection of genetic variants for
lactase persistence?
https://www.biointeractive.org/classroom-resources/making-fittest-got-lactase-coevolution-genes-and-culture