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Q. No.Out of the following, which type of interaction is responsible for the stabilisation of -helix structure of proteins?
| 1. | Ionic bonding | 2. | Hydrogen bonding |
| 3. | Covalent bonding | 4. | Vander Waals forces |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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Which of the following is not an essential amino acid :
| 1. | Valine | 2. | Leucine |
| 3. | Lysine | 4. | Tyrosine |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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Which one of the following bases is not present in DNA?
| 1. | Adenine | 2. | Cytosine |
| 3. | Thymine | 4. | Quinoline |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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The secondary structure of a protein refers to:
1. α-Helical backbone
2. Hydrophobic interactions
3. Sequence of α-amino acids
4. Fixed configuration of the polypeptide backbone
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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In both DNA and RNA, heterocyclic base and phosphate ester linkages are at:
| 1. | C5' and C1' respectively of the sugar molecule. |
| 2. | C1' and C5' respectively of the sugar molecule. |
| 3. | C2' and C5' respectively of the sugar molecule. |
| 4. | C5' and C2' respectively of the sugar molecule. |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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The functional groups present in zwitter ion are:
1. -NH2 , -COOH
2. -NH2 , SO3H
3. Both (1) and (2)
4. None of the above
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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- 1(current)
Q. No.
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