Unsaturated fats are made saturated by 
1. Polymerisation
2. Dehydrogenation
3. Hybridisation 
4. Hydrogenation
 

Subtopic:  Lipids |
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Arachidonic acid has
1. 20 carbons excluding carboxyl carbon
2. 20 carbons including carboxyl carbon
3. 16 carbons excluding carboxyl carbon
4. 16 carbons including carboxyl carbon
Subtopic:  Lipids |
 86%
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Lecithin is 
1. Simple lipid
2. Derived lipid
3. Phospholipid 
4. Steroids
 
Subtopic:  Lipids |
 89%
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Basic unit of a nucleic acid is
1. pentose sugar 
2. Phosphoric acid
3. Nucleotide
4. All of these
Subtopic:  Nucleic Acid |
 54%
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Which of the following statements is incorrect
1. Lipids are strictly macromolecules
2. Palmitic acid has 16 carbons including carboxyl carbon
3. Oils have low melting point and hence remain as liquids in winters
4. Arachidonic acid is an unsaturated fatty acid
Subtopic:  Introduction |
 77%
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Which one is the correct base pairing for DNA molecules?
1. Cytosine  - Uracil
2. Thymine  - Guanine
3. Thiamine  - Adenine
4. Cytosine  - Guanine
Subtopic:  Nucleic Acid |
 60%
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DNA resembles RNA as both have
1. Ability to replicate
2. Similar sugars
3. Similar pyrimidine bases
4. Polymer of nucleotides
 
Subtopic:  Nucleic Acid |
 63%
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On hydrolysis, a nucleoside would not yield
1. purines 
2. Pyrimidine
3. Pentose sugar
4. Phosphoric acid
Subtopic:  Nucleic Acid |
 72%
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Which of the following statements in incorrect?
1. Backbone of DNA is formed by sugar-phosphate-sugar chain
2. Nucleic acids are present in acid soluble fraction of any living tissue
3. DNA and RNA function as genetic material
4. There are three hydrogen bonds between G and C in DNA molecule
Subtopic:  Element Analysis | The DNA |
 73%
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Which of the following is not a salient feature of B-DNA?
1. One full turn of helical strand involves 10 base pairs
2. Pitch of helix would be 34 A 
3. Diameter of double helix would be 20 Å 
4. DNA with left-handed coiling
Subtopic:  The DNA |
 68%
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