In the theory for allergic desensitization, which immunoglobulin blocks the allergen from binding with IgE?
A. IgG
B. IgM
C. IgE
D. IgD
E. IgA
Answer: A
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Virus receptors are often not distributed uniformly over the surface of host cells, but are instead concentrated in lipid rafts.
Answer the following statement true (T) or false (F)
Tanisha and Tawanda are twins but do not look alike. They are the result of fertilization of
A) one oocyte by two sperm cells. B) two oocytes by one sperm cell. C) two oocytes by two sperm cells. D) one oogonium by one spermatogonium.
Antifungal drugs used to treat superficial mycoses work by
A) Disrupting fungal membrane permeability and inhibiting sterol synthesis B) Disrupting RNA function C) Altering glucose metabolism D) Inhibiting protein synthesis
Which of the following provides taxonomic information that includes the information obtained in the others listed?
A) nucleic acid hybridization B) nucleic acid-base composition C) amino acid sequencing D) biochemical tests E) cladogram