1. Assume you are analyzing the function of an unknown drug that you suspect alters metabolism in human cells. You add the drug in different amounts in a colony of cells and find that above a certain concentration, the rate of cell growth slows dramatically. You then find out that […]

Q1. Johnny fractured lower third of his right tibia in a skiing accident. The soft tissues in the area were severely damaged and their surgical removal was necessary. After prolonged immobilization, it was found that Johnny was healing extremely poorly. Why did Johnny have poor healing? Q2. Assume you have […]

In tomatoes, the three mutant traits, dwarfness, green flesh, and white flowers, are due to the homozygous recessive state of the genes d, gf, and wf (respectively). A dwarf, green-fleshed, white-flowered plant is crossed as the pollen parent to the homozygous normal plant. a. Diagram the cross, using the forked-line […]

1. Transformation, conjugation, and transduction were discovered in the laboratory. How important are these mechanisms of genetic recombination in nature? 2. What is the process of DNA fingerprinting, and how is electrophoresis used in criminal forensics? 3. How can plasmids be used to manufacture proteins such as insulin for diabetic […]