Identify the given nitrogenous base:

1. Adenine 2. Guanine
3. Thymine 4. Cytosine

Subtopic:  Nucleic Acid |
 84%
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Which of the following components is found in least amounts in an average cell?

1. Carbohydrates 2. Fats
3. Nucleic acids 4. Proteins
Subtopic:  Introduction |
 70%
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Most abundant protein in the whole of the biosphere is:

1.Collagen2.Cellulose
3.RuBisCO4.Keratin

Subtopic:  Proteins |
 86%
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Inulin is a:
1. Disaccharide containing two galactose
2. Disaccharide containing fructose and galactose
3. Polymer of fructose
4. Polysaccharide used in microbial culture

Subtopic:  Carbohydrates |
 89%
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Adenine and guanine are:
1. Substituted purines
2. Substituted pyrimidines
3. Deoxyribonucleosides
4. Ribonucleotides

Subtopic:  Nucleic Acid |
 89%
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The first amino acid in the primary structure of a protein is termed as:

1. C – terminus amino acid 2. N – terminus amino acid
3. An imino acid 4. Alpha amino acid
Subtopic:  Proteins |
 75%
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Quaternary structure is seen in proteins that:
1. act as biochemical catalysts
2. are embedded within the plasma membrane
3. are assembly of more than one subunits
4. do not have any structural role in the cell

Subtopic:  Proteins |
 74%
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The double helix model of DNA by Watson and Crick exhibits its:

1. Primary structure 2. Secondary structure
3. Tertiary structure 4. Quaternary structure
Subtopic:  Double Helix : Watson & Crick |
 72%
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The strands of the DNA double helix are:

1. identical 2. coiled around each other
3. parallel to each other 4. complementary to each other
Subtopic:  Nucleic Acid | The DNA |
 81%
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At each step of ascent, the helical strand of DNA turns

1.36 degree 2.34 degree
3.20 degree 4.180 degree
Subtopic:  Nucleic Acid | The DNA |
 81%
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