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1. The Gram stain is typically the first test performed in a microbiology laboratory in the process of identifying an unknown. Why? Give two examples of instances when a Gram stain would NOT be a useful first step.
2. What are biochemical tests and why are they performed?
3. Give two examples of biochemical tests and identify why the tests are used.
4. Imagine that you are working in a microbiology lab and you are given a sample of bacteria on an agar plate. You are told that it is eitherStaphylococcus aureus or Streptococcus pyogenes. How would you determine which one the sample contains? Are there any tests you could do to differentiate them?
5. Why must these steps be followed? Wouldn't it be easier to just observe the organism under a microscope and make an Identification based on observation?
Discuss asexual and sexual reproduction in terms of genetic diversity. How is meiosis related to genetic diversity? Use one of Gregor Mendel's ideas to support your opinion.
Explain how turgor pressure (water concentration) regulates opening and closing of stomata. What other factors are involved in controlling stomatal opening and closing?
What is genetic equilibrium? Citing good examples, explain the circumstances under which the Hardy-Weinburg principle does not apply
Some competitive swimmers hyperventilate before a race, thinking they can "load up extra oxygen" and hold their breaths longer underwater. While they can indeed hold their breaths longer, it is not for the reason they think. Furthermore, some have lo..
pneumonia is diagnosed by the presence of fluid dark shadows in an x-ray image in the alveoli. given that pneumonia
Surface renewal theory predicts that the mass transfer coefficient is directly proportional to the square root of the molecular diffusivity.
In flowering plants, is sporophytic tissue haploid or diploid? Howmany nuclei are present in the female gametophyte? How many arepresent in the male gametophyte? Are these nuclei haploid ordiploid?
One of the difficulties in the development of anti - HIV drugs is that HIV only infects humans.
Write a null and alternative hypothesis for a What is life? lab that we did using the biuret's test. Is what I wrote the correct way to write a null and alternative hypothesis?
Why was there such a diversity of species in such a small area? Could these species have been modified from an ancestral form that arrived on the Galápagos Islands shortly after the islands were formed?
Explain the implications of tele-health for the surveillance of the disease/condition you selected.
What are the major morphological features of birds - In which habitat do birds live?
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