Essay
Provide the name or three-letter code of one amino acid to fit each of the following descriptions:
a) It is normally positively charged at pH 7.0.
b) Its R group can form ionic bonds with lysine in a protein.
c) It has a hydrophobic R group.
d) It commonly forms covalent bonds between its R group and another identical R group.
Correct Answer:
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a) Arginine (Arg), histidine (His), or l...View Answer
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