In 1796 Edward Jenner, an English country doctor, noticed that milkmaids who suffered from cowpox appeared resistant to smallpox. He pioneered “vaccination” using material from the pustules of cows suffering from the related virus. It was the most significant breakthrough in the treatment and prevention of infectious disease at the […]

      “Parent” #1       Beaker #1       “Parent” #2       Beaker #2       Gene pool       Red, Blue       BB/Rr       Green, Yellow       YY/Gg       Gene frequency       50% B  50% R       56%    44%       […]

Assignment Unit outcomes addressed in this Assignment: • Identify major foodborne pathogens, their sources, resulting illnesses, and symptoms. Course outcomes assessed in this Assignment: Describe the various microorganisms that cause foodborne illness. Instructions: You are a Nutritionist at your local health department and have been asked to create a brochure […]

Suppose you remove your test cultures from the incubator and notice that one of them – a known fermenter – has a gas bubble in the Durham tube. Knowing that fermenters frequently produce gas, you ignore the bubble and proceed to the next step. Adding reagents produces no change, and […]