If the company finds this gene, it may be able to produce a drug to sell to people who have these diseases. As more is learned about genes, there is a risk that the information will be used to define certain members of society by their genetic makeup. Ask students to identify the meaning of the terms genetic discrimination and genetic privacy. Some students may know of someone with a genetic disease. Try to be sensitive to students' feelings by using language that addresses the idea of genetic mutations, or variations, rather than pejorative terms like defective, or inadequate, genes.
Some genetic variations are neutral and others are beneficial.
To extract human DNA from cheek cells. If possible, before doing this activity, make and show a slide of some cheek cells and stain it with methylene blue so that students can see the shape of the nucleus of the cheek cell. Provide each student with a copy of the See Your DNA activity sheet and a set of materials. Before students begin, make sure they understand and will follow guidelines for maintaining sterile conditions. Have students prepare their saltwater and detergent solutions.