The use of modern molecular techniques has provided a mechanism for growing the microorganisms previously referred to as unculturable.
Answer the following statement true (T) or false (F)
False
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An individual carries the allele for polydactyly, but is normal. This is an example of __________
A. simple Mendelian inheritance B. incomplete dominance C. incomplete penetrance D. codominance E. gene dosage
Which of the following is NOT a way that bacteria benefit humans?
A. produce foodstuffs such as cheese B. produce antibiotics C. break down substances harmful to humans, such as wastes, toxins, explosives, and petrochemicals D. kill harmful insects E. transfer nutrients across intestinal membranes
As a by-product of photosynthesis, what percentage of the Earth's atmosphere is oxygen?
A) 31 percent B) 21 percent C) 10 percent D) 41 percent E) 50 percent
Flagella occur in both prokaryotes and eukaryotes. Which of the following statements DOES NOT describe how the flagella of prokaryotes and eukaryotes differ?
A. Eukaryotic flagella have the motor protein dynein whereas the prokaryotic one does not. B. Eukaryotic flagella have microtubules in a cytoskeleton whereas prokaryotic ones do not. C. The filament of eukaryotes is multilayered whereas that of prokaryotes is a single strand. D. Prokaryotic flagella have a basal apparatus and hook that rotates the filament whereas eukaryotic flagella do not. E. The eukaryotic flagellum is covered by the plasma membrane whereas that of the prokaryotes is not.