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Q. No.The sugar that cannot reduce Tollen's and Fehling's reagent is:
1. Sucrose
2. Fructose
3. Maltose
4. Lactose
Subtopic: Carbohydrates - Classification & D-L configuration |
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The reaction that is not given by glucose is:
| 1. | Oxidation with bromine water. |
| 2. | Schiff's test. |
| 3. | Oxime as a product on reaction with \(NH_2OH \). |
| 4. | Hydrocarbon as a product on reaction with hydrogen iodide. |
Subtopic: Carbohydrates - Classification & D-L configuration |
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Identify the pair of amino acids that contain a sulphur atom:
1. Lysine and Arginine
2. Valine and Leucine
3. Cysteine and Methionine
4. Tyrosine and Serine
1. Lysine and Arginine
2. Valine and Leucine
3. Cysteine and Methionine
4. Tyrosine and Serine
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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Level 2: 60%+
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Incorrect statement among the following is :
| 1. | In DNA the sugar moiety is β-D-2-deoxyribose |
| 2. | Thymine is absent in RNA |
| 3. | Nucleotides are joined together by phosphodiester linkage between 5' and 3' carbon atoms of a pentose sugar |
| 4. | Cytosine is a bicyclic nitrogenous base |
Subtopic: Carbohydrates - Classification & D-L configuration | α - Amino Acids, Peptide Bond, Proteins & Structure |
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| Statement I: | A unit formed by the attachment of a base to 1' position of sugar is known as a nucleoside. |
| Statement II: | Nucleotides are joined together by phosphodiester linkage between 5' and 3' carbon atoms of the pentose sugar. |
| 1. | Statement I is correct but Statement II is incorrect. |
| 2. | Statement I is incorrect but Statement II is correct. |
| 3. | Both Statement I and Statement II are correct. |
| 4. | Both Statement I and Statement II are incorrect. |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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Identify the anomeric carbon in the given structure of \(\alpha-D-\) glucopyranose:
| 1. | C1 | 2. | C2 and C3 |
| 3. | C4 and C5 | 4. | C6 |
Subtopic: Carbohydrates - Classification & D-L configuration |
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Consider the structure of the nucleoside given below:
The attachment of phosphoric acid to which of the labeled position would lead to the formation of a nucleotide?
1. a and b only
2. c only
3. d only
4. e only
The attachment of phosphoric acid to which of the labeled position would lead to the formation of a nucleotide?
1. a and b only
2. c only
3. d only
4. e only
Subtopic: DNA, RNA & Metal Ions |
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Amylopectin is a branched chain polymer of α-D-glucose having:
| 1. | C1-C4 and C1-C2 glycosidic linkage only. |
| 2. | C1-C6 glycosidic linkage only. |
| 3. | C1-C4 and C1-C6 glycosidic linkage only. |
| 4. | C1-C2 and C1-C6 glycosidic linkage only. |
Subtopic: Polysaccharides & their Importance |
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Subtopic: Carbohydrates - Classification & D-L configuration |
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Match the structure of the bases in Column-I with their names given in Column-II:
Choose the correct answer from the options given below:
| Column-I | Column-II | ||
| A. |  |
I. | Uracil |
| B. |  |
II. | Adenine |
| C. |  |
III. | Cytosine |
| D. |  |
IV. | Thymine |
Choose the correct answer from the options given below:
| (A) | (B) | (C) | (D) | |
| 1. | (IV) | (II) | (III) | (I) |
| 2. | (I) | (II) | (III) | (IV) |
| 3. | (II) | (III) | (IV) | (I) |
| 4. | (IV) | (I) | (II) | (III) |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
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