Which of the following is not true for polyclonal antibodies? A. They contain a mixture of antibodies B. They are raised against purified proteins C. They can be used to detect targets that differ in only a single antigenic determinant D. The amounts of antibodies in a polyclonal preparation may vary from one batch to another
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Polyclonal antibodies are produced by multiple B cell clones, each producing a different antibody that recognizes a different epitope on the same antigen. So, they do contain a mixture of antibodies. This statement is true. B. Polyclonal antibodies are raised Show more…
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Which of the following statements about B cells/antibody production is false? a) $\mathrm{B}$ cells of a given specificity initially have the potential to make more than one class of antibody. b) In response to antigen, all $\mathrm{B}$ cells located close to the antigen begin dividing. c) Each $\mathrm{B}$ cell is programmed to make a single specificity of antibody. d) The B-cell receptor allows B cells to detect antigen. e) The cell type that makes and secretes antibody is called a plasma cell.
Which of the following statements is not true? a. An antibody has more than one antigen-binding site. b. An antigen can have different antigenic determinants. c. A lymphocyte has receptors for multiple and different antigens. d. A bacterium has more than one antigen.
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