Biology As you have learned, the human body relies upon macromolecules (carbohydrates, lipids, proteins) to sustain normal cellular processes and fuel the body. Research a popular fad diet (e.g., Atkins, the grapefruit diet, low carbohydrates, the lemonade diet) and answer the following questions in your initial post: 1. Briefly describe […]

Q1. What kind of cell communication is said to ovvur if the cell sevretes the growth factor that then acts on neighbouring cells to cause them to proliferate? Q2. Testosterone and estrdiol are male and female sex hormones, respectively, in many vertebrates. In what ways do these molecules be different? […]

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 […]