The most abundant class of antibody in the body, what antibody can function by neutralization, agglutination, opsonization, complement activation, and enhancement of natural killer cell activity?
A) IgM
B) IgE
C) IgG
D) IgD
E) IgA
Ans: C) IgG
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Answer the following statements true (T) or false (F)
1. The proteome, rather than genome, is most directly responsible for the structure, function, and appearance of organisms. 2. Little scientific evidence is necessary when formulating a theory. 3. The maintenance of cell structure requires energy. 4. Discovery-based science and hypothesis testing are the two major scientific approaches that help us understand biology.
Which of the following statements is true?
a. When lipids and water are mixed, it is the water molecules that isolate themselves into droplets. b. When lipids and water are mixed, the lipids dissolve and enter into a solution. c. Lipids are nonpolar and will not dissolve in water. d. Polar substances are able to pass through a plasma membrane more readily than nonpolar substances. e. All portions of a phospholipid molecule found in a membrane are classified as nonpolar.
Karyotyping is useful for determining:a
the number of chromosomes in an individual. b. if recessive traits are present. c. if a specific gene is missing from a chromosome. d. if gene mutations have occurred. e. the presence of sickle cell anemi
What are some possible consequences of global warming?
What will be an ideal response?