A pure culture is composed of cells that arise from a single (cell/inoculum/sample)
What will be an ideal response?
cell
Bloom's Taxonomy: Knowledge
Section: Culturing Microorganisms
Learning Outcome: 6.9
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The contacts between the DNA and the histones of the nucleosome are:
A. mainly between the R groups of the histones and the phosphate backbone of the DNA. B. mainly between the conserved histone folds and the bases that are exposed in the major groove of the DNA. C. mainly between the conserved histone folds and the bases that are exposed in the minor groove of the DNA. D. more prevalent in regions of the DNA that have tracts of G?C base pairs. E. primarily between the DNA and the histone peptide backbone.
The heart damage associated with Lyme disease is
a. rheumatic fever b. hypertension c. endocarditis d. myocarditis e. malignant melanoma
In Figure 28-2, the zygote is the structure labeled:
a. 1.
b. 4.
c. 8.
d. 17.
e. 21.
A phenol red glucose broth with a Durham tube has been inoculated and incubated. After 48 hours, the broth is turbid and bright yellow and approximately half of the contents of the Durham tube contains bubbles. Interpret these results.
a. The organism will ferment lactose as well. b. The organism is fermenting glucose. c. The organism is an obligate anaerobe. d. The organism is fermenting lactose and producing ethanol and CO2.