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NBME 21 Answers

nbme21/Block 1/Question#4 (23.7 difficulty score)
A 67-year-old man comes to the emergency ...

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 +8  upvote downvote
submitted by haliburton(191),
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E2F si taaatilnnsrol oaolntgei coafrt 2, iwhhc si ssnayerce fro epirton es.ssytihn

sympathetikey  I. Am. So. DUMB. +18  
nala_ula  same :( +2  
lovebug  At first, E2F flashed through my mind. then I thought maybe EF2 is elongation factor for transcription. DUMB. :( +  

 +1  upvote downvote
submitted by divya(48),

C dip exotoxin inhibits protein synthesis(translation) via ADP ribosylation of EF 2.