Multiple Choice
In some proteins, an ionic bond may form between an amino acid with
A) a positive R group and an amino acid with a negative R group.
B) a negative R group and a nonpolar amino acid.
C) a sulfhydryl group and an amino acid with an amine group.
D) a carboxyl group and an amino acid with a C-terminal.
E) a glycine and another with a tryptophan.
Correct Answer:

Verified
Correct Answer:
Verified
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