Lactose Tolerance: Human Evolution Kit

Students research why one-third of Americans are lactose intolerant, but most other cultures have a much higher intolerance rate.

• For grades 9 - 12
• Complete instructions included
• Teacher-designed lab
• Students research where and why lactose intolerance is high
• Purpose for students: to learn how to make inferences based on research

In this lab designed by teacher Therese Passerini, students test milk with a glucose strip and introduce the enzyme lactase. After retesting, students notice that lactose in milk breaks down into galactose and glucose.

Students then research a world map to observe trends in lactose tolerance and make inferences on the inheritance and possible adaptive advantage of lactose tolerance in some populations. This kit is for grades 9 - 12.

Informations de commande: This kit includes lactase, glucose test strips, map of the world, world map (color-coded), pedigrees, and complete instructions. Milk is not included. Required but not included: Test tubes, test tube racks, graduated cylinder.