The invasion and multiplication of a pathogen in the human host is referred to as a(n) ______
Fill in the blank(s) with the appropriate word(s).
infection
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The width of a DNA double helix
a. is constant. b. is narrower where adenine is present than where cytosine is present. c. is wider where purines are present than where pyrimidines are present. d. varies randomly. e. is wider where pyrimidines are present than where purines are present.
Which of the following is a correct list of the types of plasmids that bacteria can carry?
a. metabolic plasmids, resistance plasmids, and virulence plasmids b. metabolic plasmids, resistance plasmids, virulence plasmids, replication plasmids, conjugation plasmids, transduction plasmids, and transformation plasmids e. metabolic plasmids, replication plasmids, and virulence plasmids
Answer the following questions true (T) or false (F)
1. The immunochromatographic assay uses enzyme-linked anti-antibodies. 2. The hepatitis B vaccine is an attenuated vaccine. 3. The MMR (measles, mumps, rubella) vaccine requires multiple immunizations in the first year because it is composed of whole killed viruses.
Which of the following procedures would be used to introduce DNA into a single mouse cell?
A) Southern blotting B) electroporation C) gene gun D) microinjection E) protoplast fusion