Biostatistics and Epidemiology- 1. Define sensitivity and specificity 2. A cancer screening test is being applied in a population of 200 men who were also evaluated through the biopsy of tumor. 30 of the men were confirmed having cancer through biopsy. Out of these 30, 25 were also found to […]

Q1. For several years, humans have used various techniques that have influenced the genetic makeup of organisms. These techniques have led to the production of new varieties of organisms that possess characteristics that are useful to humans. Recognize one technique presently being used to alter the genetic makeup of an […]

1) Is cytoskeleton involved in vacuole formation? If so what role does it play and what proteins are involved? 2) What are the advantage of using Tethrahymena as experimental system? What are the normal source of food for Tetrahymena? Explain the importance of vacuole formation in Tetrahymena life? Why did […]

(1a ) How much oxygen is required to support the aerobic biodegradation of the BOD5 material in a storm water + sewage overflow situation that involves a 24 h overflow of 2 500 gallons/hour into a receiving river? The overflow contained on average 80 mg BOD per liter. Please give […]