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Q. No.Essential oils are those which are
1. Essential for plants themselves
2. Always found only in animal products like butter
3. Never used in soaps and cosmetics
4. A source of perfumes
Subtopic: Lipids |
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Highest level of structural organisation present in Keratin of hair is
1. Tertiary structure of protein
2. -helical structure of protein
3. -pleated structure
4. Primary structure of protein
1. Tertiary structure of protein
2. -helical structure of protein
3. -pleated structure
4. Primary structure of protein
Subtopic: Proteins |
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The backbone of a nucleic acid strand is made up of
1. Base and phosphate
2. Sugar and phosphate
3. Sugar and base
4. Sugar, base and phosphate
1. Base and phosphate
2. Sugar and phosphate
3. Sugar and base
4. Sugar, base and phosphate
Subtopic: The DNA |
72%
From NCERT
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Subtopic: Nucleic Acid |
85%
From NCERT
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What should be added to a nucleoside to yield a nucleotide?
1. Sugar
2. Phosphoric acid
3. Nitrogenous base
4. Sugar and nitrogenous base
1. Sugar
2. Phosphoric acid
3. Nitrogenous base
4. Sugar and nitrogenous base
Subtopic: Nucleic Acid: Nucleotides |
89%
From NCERT
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The two strands of DNA are coiled around
1. Each other
2. Differently
3. A common axis
4. Different axis
1. Each other
2. Differently
3. A common axis
4. Different axis
Subtopic: The DNA |
59%
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The two strands of DNA are held together by bonds of
1. Nitrogen
2. Oxygen
3. Hydrogen
4. Carbon
1. Nitrogen
2. Oxygen
3. Hydrogen
4. Carbon
Subtopic: The DNA |
92%
From NCERT
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Subtopic: Amino Acids |
82%
From NCERT
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Which of the following are basic amino acids?
1. Glycine and Alanine
2. Lysine and arginine
3. Glutamic acid and Aspartic acid
4. Histidine and Proline
1. Glycine and Alanine
2. Lysine and arginine
3. Glutamic acid and Aspartic acid
4. Histidine and Proline
Subtopic: Amino Acids |
90%
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Which of the following amino acids is involved in the formation of Heme?
1. Tryptophan
2. Tyrosine
3. Glycine
4. Histidine
1. Tryptophan
2. Tyrosine
3. Glycine
4. Histidine
Subtopic: Amino Acids |
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