1. A student nurse practitioner asks her preceptor about the origins of different tissues, and their cellular origins during the process of development. Which of the following statements by the preceptor best describes the process of cell differentiation? “Cells of the hematopoietic system produce the appropriate body cells that are […]

If a body is buried at the base of a mountain and there are lots of wildlife around. A couple years later a 1 year old coyote was tested for carbon content and a carbon atom from the buried body was found in the coyote. How did the carbon atom […]

A 28-year old woman severly twists her right ankle in a sleeding accident. Four hours later, the ankle is swollen and appers blue-white. Which of the following mchanisms of disease best explains the function of bradykinin geenerated at the site of injury in this patient? Stbilziation of postcapillary endothelium Eosinophil […]

Dolly, Dolly, and More Dolly It all started with a sheep named Dolly. In the mid-1990s, scientists proved convincingly that after decades of trying, we could, indeed, clone mammals – and even possibly, human beings. Unsurprisingly, this discovery was one of the most controversial of the 20th Century, and the […]