Which of the following is the primary source of energy for chemoautotrophs?
a. inorganic molecules
b. living organisms
c. previously living organisms
d. sunlight
a. inorganic molecules
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Chromosome number for a species is 34. When a cell divides by mitosis, the daughter cells have how many
chromosomes? a. 17 b. 34 c. 51 d. 68 e. 119
Which of the following microorganisms use M protein to avoid destruction of a phagocyte?
a. Coxiella burnetii b. Streptococcus pyogenes c. Streptococcus pneumoniae d. Haemophilus influenzae
Determining microbial sensitivity to an antimicrobial agent by using a filter paper soaked with the drug on a bacterial lawn on an agar plate is called:
A) dilution method B) disk diffusion method C) automated testing D) phage typing
In phage ?, the relative affinities of the lambda repressor and the cro protein to the three binding sites in the OR region are:
A. the same. B. inversely proportional C. unrelated.