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fundai! fundai!
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6 years ago
The structure of tumor necrosis factor includes which of the following?
 A) four helical segments
  B) only b-pleated sheet
  C) both a-helix and b-pleated sheet
  D) four cysteine residues which form two disulfide bridges
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whitneyracquelwhitneyracquel
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6 years ago
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fundai! Author
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6 years ago
Smart ... Thanks!
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Brilliant
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2 hours ago
this is exactly what I needed
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