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Retired NBME 23 Answers

nbme23/Block 2/Question#11 (reveal difficulty score)
An antiserum is elicited by immunization with ...
Proteins X and Y have no epitopes in common ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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submitted by โˆ—mousie(272)
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An epitope, also known as antigenic determinant, is the part of an antigen that is recognized by the immune system, specifically by antibodies, B cells, or T cells. For example, the epitope is the specific piece of the antigen to which an antibody binds. - Wiki - Because the amount of Labeled X bound is unchanged by the addition of Y- they are independent of each other i.e. share no epitopes

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 +2  upvote downvote
submitted by mguan1993(13)
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For completeness sake, could someone explain the other wrong answer choices in graph form? I can easily visualize the right answer but for some reason can't picture the other choices

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yb_26  check UWorld #12299 +10
shawai  QID 22219 uworld +
shawai  QID 12299<---this is the correct Uworld question id +



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