Which of the following can be used as vectors for cloning DNA fragments?
A. Cosmids
B. Bacteriophages
C. Plasmids
D. All of the choices are correct.
Answer: D
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Which of the following is true of the Sanger sequencing method?
A. It requires an RNA template to copy. B. It incorporates dNTPs using an RNA polymerase. C. It requires a primer for the polymerase; the primer is radiolabelled so the sequences generated can be visualized. D. It requires chain terminating ddNTPs which lack a 2'OH and are thus unable to form a bond with the next nucleotide. E. The sequencing reaction products are separated by affinity chromatography.
In this disease, the mucus-producing lining of
airways become inflamed and excrete excess mucus that becomes colonized by bacteria. This disease is
a. anemia. b. emphysema. c. asthma. d. bronchitis. e. atherosclerosis
The following molecule is best described as a(n) ________. CH3–CH2–CH2–CH2
A) protein B) carbohydrate C) organic compound D) inorganic compound
The DNA in linear eukaryotic chromosomes is wrapped around proteins called _____________, which keep the DNA from getting tangled and enable an orderly, tight, and efficient packing of the DNA inside the cell.
a. histones b. histamines c. telomeres d. ribosomes e. centromeres