Given below is the diagrammatic representation of one of the categories of small

molecular weight organic compounds in the living tissues. Identify the category shown

and the one blank component X in it

Category              Component

1. Cholesterol       Guanin

2. Amino acid       NH2

3. Nucleotide        Adenine

4. Nucleoside       Uracil

Subtopic:  Nucleic Acid: Nucleotides | Double Helix : Watson & Crick Part 1 | Double Helix : Watson & Crick |
 67%
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NEET - 2012
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Nucleoside consists of

1.Phosphate + Sugar + Nitogenous bases

2.Sugar + Nitogenous bases

3.Phosphate + Sugar

4.Phosphate + Nitogenous bases

Subtopic:  Nucleic Acid: Nucleotides | Double Helix : Watson & Crick Part 1 | Double Helix : Watson & Crick |
 87%
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An example of protein with quaternary structure is

1. Myoglobin

2. Haemoglobin

3. Keratin

4. All of these

Subtopic:  Nucleic Acid: Nucleotides |
 73%
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Lecithin is a these

1. Type of wax

2. Phospholipid

3. Oil

4. Simple fatty acid

Subtopic:  Nucleic Acid: Nucleotides |
 91%
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The pentose sugar present in RNA is

1. Galactose

2. Sucrose

3. Ribose

4. Fructose

Subtopic:  Nucleic Acid: Nucleotides |
 92%
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Match List -I with List - II.

List-I List-II
(a) Protein I.  C-C double bonds
(b) Unsaturated fatty acid II. Phosphodiester bonds
(c) Nucleic acid III. Glycosidic bonds
(d) Polysaccharides IV. Peptide bonds


Choose the correct answer from the options given below:

Options: (a) (b) (c) (d)
1. II I IV III
2. IV III I II
3. IV I II III
4. I IV III II

Subtopic:  Nucleic Acid: Nucleotides | Proteins | Carbohydrates | Lipids |
 86%
From NCERT
NEET - 2021
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Which of the following is the correct structure of a monomer present in the structure of a DNA molecule?
1.   2.
3. 4.
Subtopic:  Nucleic Acid: Nucleotides | The DNA |
 72%
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The chemical components of a nucleotide do not include:
1. A heterocyclic compound
2. A monosaccharide
3. A phosphate
4. A saturated fatty acid
Subtopic:  Nucleic Acid: Nucleotides |
 84%
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Identify the given nitrogenous base:
1. Thymine 2. Uracil
3. Adenine 4. Guanine
Subtopic:  Nucleic Acid: Nucleotides | The DNA |
 78%
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If A and C make 30% and 20% of DNA, respectively, what will be the percentage composition of T and G ?
1. T : 20%, G : 30%
2. T : 30%, G : 20%
3. T : 30%, G : 30%
4. T : 20%, G : 20%
Subtopic:  Nucleic Acid: Nucleotides |
 84%
From NCERT
NEET - 2022
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