Patterns in the Distribution of Lactase Persistence
This activity extends concepts covered in the film Got Lactase? The Co-Evolution of Genes and Culture. Students analyze data from the scientific literature to draw conclusions about the geographic distribution of lactase persistence.
The activity begins with students watching the film. They then analyze data on the frequency of lactase persistence and the alleles associated with that trait. The activity involves using the data to draw pie charts, plot the pie charts on a world map, and identify patterns. The activity connects concepts in genetics with world geography and culture.
Student Learning Targets
Calculate frequencies and graph data in pie charts.
Interpret data from different research studies to infer the global distribution of a trait.
- Make claims based on scientific evidence and use scientific reasoning to support the claims.
allele, enzyme, genotype, phenotype, population
Refer to the “Educator Materials.”
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HS-LS4-3; SEP1, SEP4, SEP5, SEP6
1.A.1, 1.C.3; SP2, SP3, SP5, SP6
5.1, 5.2, 10.3
Math.A-REI.3; MP2, MP3, MP6
CC1; DP1, DP2