Polyclonal antibodies in serum contain
A. At least three different kinds of antigens
B. A mixture of vaccines
C. A mixture of antibodies
D. At least three different kinds of cells
Answer: C. A mixture of antibodies
Biology & Microbiology
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Which of the following is not a major cause of meningitis cases in the United States?
A. Neisseria meningitides B. Streptococcus pneumoniae C. Haemophilus influenzae D. Staphylococcus aureus
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The most common spacing is random dispersion
____________________ Indicate whether the statement is true or false.
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How many electrons does one atom of carbon share to complete its valence shell?
A) 2 B) 3 C) 4 D) 8
Biology & Microbiology