Biochemistry - Mock Test 48

Question 471

Foetal haemoglobin contains?

A) Two α and two γ chains B) Two β and two γ chains C) Both A and B D) None of these

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Question 472

α-helix is stabilized by?

A) Hydrogen bonds B) Disulphide bonds C) Salt bonds D) Non-polar bonds

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Question 473

α-helix is disrupted by certain amino acids like?

A) Proline B) Arginine C) Histidine D) Lysine

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Question 474

The distance travelled per turn of α-helix in nm is?

A) 0.34 B) 0.44 C) 0.54 D) 0.64

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Question 475

Each turn of α-helix contains the number of amino acids?

A) 2.8 B) 3.2 C) 3.4 D) 3.6

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Question 476

Many globular proteins are stable in?

A) Hydrogen bonds B) Salt bonds C) Non-polar bonds D) Disulphide bonds

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Question 477

In many proteins the hydrogen bonding produces a regular coiled arrangement called?

A) α-helix B) β-helix C) Both A and B D) None of these

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Question 478

A coiled structure in which peptide bonds are folded in regular manner by?

A) Globular proteins B) Fibrous proteins C) Both A and B D) None of these

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Question 479

Each hydrogen bond is quite?

A) Weak B) Strong C) Both A and B D) None of these

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Question 480

Insulin is oxidized to separate the protein molecule into its constituent polypeptide chains without affecting the other part of the molecule by the use of?

A) Performic acid B) Oxalic acid C) Citric acid D) Malic acid

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