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Structure and Properties of Peptides

Structure and Properties of Peptides
The major element of secondary structure in myoglobin and hemoglobin is

the P-strand
the reverse turn
All of these
the a-helix

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Structure and Properties of Peptides
What was the first protein whose complete tertiary structure was determined?

Myoglobin
Pancreatic ribonuclease
Pancreatic DNase
Lysozyme

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Structure and Properties of Peptides
The different orders of protein structure are determined by all of the following bond types except

disulfide bridges
hydrogen bonds
phospho-diester bonds
peptide bonds

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Structure and Properties of Peptides
Which hemoglobin chain replaces the beta chain in embryonic hemoglobulin?

Gamma
Alfa
Epsilon
Delta

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Structure and Properties of Peptides
The peptide, Val-Lys-Glu-Met-Ser-Trp-Arg-Ala, was digested with cyanogen bromide (CNBr) to produce:

Val-Lys-Glu-Met-Ser-Trp + Arg-Ala
Val-Lys-Glu-Met + Ser-Trp-Arg-Ala
Val-Lys-Glu + Met-Ser-Trp-Arg-Ala
Val-Lys + Glu-Met-Ser + Trp-Arg-Ala

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Structure and Properties of Peptides
The molecular formula for glycine is C2H5O2N. What would be the molecular formula for a linear oligomer made by linking ten glycine molecules together by condensation synthesis?

C20H50O20N10
C20H68O29N10
C20H32O11N10
C20H40O10N10

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