To determine the isoelectric point of a protein, first establish that a gel:
A) contains a denaturing detergent that can distribute uniform negative charges over the protein's surface.
B) exhibits a stable pH gradient when ampholytes become distributed in an electric field.
C) is washed with an antibody specific to the protein of interest.
D) neutralizes all ionic groups on a protein by titrating them with strong bases.
E) relates the unknown protein to a series of protein markers with known molecular weights
Ans: B) exhibits a stable pH gradient when ampholytes become distributed in an electric field.
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Transplants of organs or tissues from two genetically unrelated organisms is known as a(n)
A) allograft. B) chimerigraft. C) transgenic animal. D) xenograft. E) none of the above
Blood cultures are collected from a 36-year-old patient suspected of having a disseminated fungal infection. History reveals that she was exposed to bird droppings and may have inhaled the conidia. What is the best blood culture system to use to ensure optimal recovery of this pa-thogen?
a. BACTEC b. BacT/ALERT c. ESP system d. Isolator system
Which is true with regard to the Hardy-Weinberg concept?
A. Gene frequencies change on a random basis. B. Mutation prevents the Hardy-Weinberg equilibrium from being achieved. C. Gene frequencies are unaffected by population size. D. The Hardy-Weinberg concept only applies to animal populations.
Macrophages release (bradykinin/histamine/prostaglandin) in response to microbes and thereby contribute to acute inflammation
What will be an ideal response?