Protein’s conformation which is regular geometric structure is:

1. α-helix
2. Primary structure
3. Secondary structure
4. β-pleated sheet
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Answer: A
Explanation:
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Size of a protein molecule does not depend on:

1. Types of bonds
2. Types of amino acids
3. Number of amino acids
4. R groups of amino acids
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Answer: A
Explanation:
• N/A
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Number of peptide bonds present in α-chain of insulin is:

1. 21
2. 30
3. 29
4. 20
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Answer: A
Explanation:
• N/A
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How many water molecules are released in the formation of peptide bonds to form α-chain of hemoglobin is:

1. 141
2. 140
3. 146
4. 145
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Answer: B
Explanation:
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One hemoglobin molecule has how many heme groups?

1. 1
2. 2
3. 3
4. 4
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Answer: A
Explanation:
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One hemoglobin molecule has how many amino acids in its polypeptide chains?

1. 51
2. 141
3. 146
4. 576
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Answer: D
Explanation:
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Number and sequence of amino acids in a polypeptide chain is controlled by:

1. Number and sequence of nucleotides
2. Number and sequence of codons
3. Number and sequence of genes
4. Both A & B
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Answer: D
Explanation:
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One turn of the α-helix contains how many amino acids?

1. 4
2. 3.6
3. 36
4. 40
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Answer: B
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Most abundant protein in the world is:

1. Collagen
2. Keratin
3. Rubisco
4. Silk
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Answer: C
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Characteristic not related to globular proteins is:

1. Soluble in aqueous media
2. Thermostable
3. Inelastic
4. Physiological role
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Answer: B
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