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Case study #1. Cardiac Contractility, dysfunction and pharmacology of cardiac contractility AW, a 69-year-old female with known systolic dysfunction and heart failure, is admitted to the hospital with shortness of breath and nausea. The patient’s cardiac history is notable for previous myocardial infarction, which occurred1.5 years ago. Since her myocardial […]

A male and female giraffe live on a small island in the Indian Ocean. One giraffe has a long neck and one has a short neck. On the island grow many tall trees and many short trees. The trees are the giraffes’ only source of food. The giraffe with the […]

Dr. James Cebulski has obtained two true-breeding strains of mice, each homozygous for an independently discovered recessive mutation that prevents the formation of hair on the body. The discoverer of one of the mutant strains calls his mutation naked, and the other researcher calls her strain hairless. To determine whether […]

1. Are the controls in this experiment, positive or negative controls? How do you know? (what is the purpose of each)? 2. Which bacterial plates contained oxidase positive bacteria? Which plates contained oxidase negative bacteria? Were the colonies from the plates similar? How do you interpret the colony growth? 3. […]