Where is the site for protein modification in a eukaryotic cell?
A) inside the nucleus
B) in the chloroplasts
C) between adjacent ribosomes
D) in the Golgi complex
Ans: D) in the Golgi complex
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Which of these is often used as a prophylactic measure to protect a person against future attack by a pathogen?
A) antiserum injection B) artificial passive immunity C) vaccination D) None of these are correct.
The enterotype of a human depends primarily on:
A. gender. B. nationality. C. the predominant microbial genus of organisms found in the gut. D. body mass index.
You want to examine the structure of the protein coat of a virus by microscopy. Which microscope is your best choice, and why?
A. The scanning electron microscope-it has excellent resolution and magnification, much higher than a light microscope, and can clearly visualize viruses. B. An atomic force microscope-this has the highest resolution and magnification of the microscopes we discussed. Here, we want to visualize a subcomponent of the virus particles, so we need the best value for resolution and magnification we can possibly achieve. C. A fluorescent microscope-this will let us tag the protein coat with colored dyes in order to visualize it using this light microscope at 1000x. D. A bright-field light microscope-of course, we'll need to stain the viruses before we can visualize them against the bright white background at 1000x total magnification.
Which species lives in “disturbed habitats”?
a. fish b. deer c. insects d. humans e. birds