Q. Which hemoglobin chain replaces the beta chain in embryonic hemoglobulin?

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Q. Hemoglobin has quaternary structure and is made up of

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Q. When pO₂ = Kd of myoglobin, the fractional saturation (YO₂) is about

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Q. Peptides in the fully extended chain conformation

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Q. The oxygen in hemoglobin and myoglobin is bound to

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Q. Which of the three subunits of the G proteins binds GDP and GTP?

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Q. In deoxy hemoglobin (Hb), the Fe (II) is coordinated to

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Q. In the β-pleated sheet

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Q. The Ramachandran Plot illustrates the fact that

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Q. The resonance structures that can be drawn for the peptide bond indicate that the peptide bond

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Q. The major element of secondary structure in myoglobin and hemoglobin is

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Q. Hydrogen bonds in a-helices are

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Q. The peptide bond in proteins is

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Q. 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?

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Q. Which of the following is an example of tertiary structure in a protein?

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Q. The peptide, Val-Lys-Glu-Met-Ser-Trp-Arg-Ala, was digested with cyanogen bromide (CNBr) to produce:

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Q. If the F and Y angles of each peptide unit in a protein are known, which of the following may also be determined?

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Q. The different orders of protein structure are determined by all of the following bond types except

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Q. The heme is held in place by a bond between

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Q. Disulfide bonds most often stabilize the native structure of

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