Group 3: Infections with this microbe are often treated with antibiotics.

The sum of n Bernoulli trials has what distribution?

Group 3: The causative microbe is an enveloped virus with single stranded RNA genome.  Which of the following statements is TRUE regarding this virus? (choose all that apply)

Question Group 1:   You are studying the human microbiome and you are particularly interested in the microorganisms found in the large intestine.  You isolate a microbe from a stool sample in the lab and name it Stedwards goldii.   Answer questions 1-22 based on this organism and experiments described later in the questions.

Group 1: Based on the annotated genome in Question 16 answer the following questions. This is an example of what type of control mechanism(s)? (five words max) Explain what is happening at the regulatory region on a molecular level when yfg is being transcribed.  Be sure to include all relevant proteins and their role in your description. (six sentences max) Please, label your answers A-B.

Group 3: Can you apply Koch’s postulates to a virus?  Why are why not?  To fully answer this question, address the prompts below. Identify Koch’s postulates. (6 sentences max) Which postulates (if any) would be difficult to achieve with a viral pathogen, and why? (5 sentences max) Which postulates (if any) would not be difficult to achieve with a viral pathogen, and why? (5 sentences max) Please label your answers A-C.

Group 1: Based on your microscopy results you identify S. goldii as a Gram positive bacteria.  Which of the following components would you expect S. goldii to have?  (Choose all that apply)

What is the main purpose of HEPA filters in microbial control?

Which term refers to reducing pathogens on living tissues?

What factor does NOT affect the effectiveness of a disinfectants?