1. Click here to view an animation that explains how mutations occur in your DNA.2. Click here to view an animation about sickle cell anemia.
2.1 What is sickle cell anemia?
2.2 How many abnormal genes must a person inherit to suffer from sickle cell anemia?
3. Click here to view an animation that explains how a drug, Gleevec, can stop the harmful effects of a specific type of Leukemia.
