Test: GRE Subject Test: Biochemistry, Cell, and Molecular Biology

1.

For amino acids, the phi () angle refers to the bond between __________ and the alpha carbon while the psi () angle refers to the bond between the alpha carbon and __________.

the carbonyl carbon . . . the amine nitrogen

the amine nitrogen . . . the carbonyl carbon

the carbonyl carbon . . . the R group's first carbon

the amine nitrogen . . . the R group's first carbon

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