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omrglss omrglss
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6 years ago
Which of the following is not one of the 20 standard amino acids which are the building blocks of proteins, but is in fact sometimes found in proteins?
 a. citrulline c. selenocysteine
  b. ornithine d. xanadine
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gidgetlynch@gmagidgetlynch@gma
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6 years ago
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6 years ago
You make an excellent tutor!
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Smart ... Thanks!
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