Granulomatous amebic encephalitis is caused by
a) Acanthamoeba.
b) Naegleria fowleri.
c) Trypanosoma brucei.
d) Cryptococcus neoformans.
Ans: a) Acanthamoeba.
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Quality control is set up on a new lot of an indole reagent. Clostridium bifermentans and Clostridium bolteae are used, and the following results are obtained: • C. bifermentans: positive • C. bolteae: negative Which one of the following statements explains this discrepancy?
a. The reagent is most likely expired. b. The incubation time is most likely abbre-viated. c. These two organisms are poor choices; both are indole-positive. d. No discrepancy is present. The results ob-tained are correct.
What is the movement of part of one chromosome to another chromosome called?
A) inversion B) duplication C) deletion D) translocation
Which molecule is INCORRECTLY matched
with its component part?
a. fat: fatty acid. b. starch: glycerol. c. protein: amino acid. d. glycogen: glucose. e. nucleic acids: nucleotide
©McGraw-Hill EducationConsider the cladogram shown. Which pair of species shares the greatest number of derived characters (synapomorphies)?
A. 2 and 4 B. 2 and 3 C. 6 and 5 D. 1 and 4 E. 6 and 4