Mouse L-cells have proven to be an extremely useful model system for investigating the properties of cadherins because they do not normally express any cadherins. If different population of L-cells are transfected with vectors expressing one or the other of two different cadherins, and are the dissociated and mixed together, they segregate into two separate […]

One of the most controversial moral and ethical dilemmas of the President George W. Bush’s campaign to be re-elected focused on stem cells. Stem cells have the ability to become or differentiate into any type of cell. If you had the power to become a stem cell and have unlimited […]

Trypanosoma brucei is the agent that causes African sleeping sickness in humans bitten by the tsetse fly. Glycolysis is unusual in this organism, providing an opportunity to create drugs that poison the parasite without harming humans. In T. brucei, the seven glycolytic enzymes converting glucose to 3-phosphoglycerate are localized in […]

Exercise 1: Data Interpretation Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organism requires oxygen to survive, it is a necessary component of water systems such as streams, lakes and rivers in order to support aquatic life. The dissolved oxygen is measured […]