Which of the following bacterial genera is useful for sewage treatment?
A) Burkholderia
B) Thiobacillus
C) Neisseria
D) Zoogloea
E) Nitrosomonas
D
Bloom's Taxonomy: Comprehension
Section: Survey of Bacteria
Learning Outcome: 11.22
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Which of the following statements is TRUE of restriction enzymes?
A. They are not naturally produced by bacteria, but are bioengineered by them. B. They protect bacterial cells from invasion by foreign DNA. C. There are less than 10 restriction enzymes known. D. They cleave the DNA backbone at only one location. E. They cleave DNA only at sites of adjacent thymine bases.
The coding regions of a gene are known as ________.
Fill in the blank(s) with the appropriate word(s).
What explains the coloration of giant kelp?
A. It facilitates absorption of the blue-green light prevalent in their environment. B. It facilitates absorption of the brown light prevalent in their environment. C. It warns grazers of their toxic properties. D. It camouflages them from grazers. E. It is the result of waste products stored in the tissues.
A physician sees a new patient who is 25 years old. The patient reports that she has been experiencing recurrent ear, nose, and throat problems resulting from various infections since she was about 5 years old. The infections last for long periods of
time and are difficult to treat. The physician suspects that the patient may have A) an autoimmune disorder. B) an allergic reaction. C) an immunodeficiency disorder. D) abnormal levels of allergens.