For High School Teachers
  From DNA to Organism: A Study in DNA Function for the High School Biology Classroom

Module 4: Yeast and the gene


         Here the students will conduct an experiment that will test to see what effect the given gene has on yeast cells. The students will be given two cultures of yeast cells, one with the gene inserted and one with out. They will also be given two different environments to test their yeast cells in, low K+ levels and high K+ levels. The ideal set up will be one where the students have four tubes: High K+ with gene, low K+ with gene, high K+ without gene, and low K+ without gene. Students will verify that yeast with the mutant gene will only grow in high K+ environments.

     Lectures: None

     Labs: Yeast, genes and salty environments