Which of the following is a nucleoside?

1.Adenylic acid

2.Adenosine

3.Adenoside

4.Both 1 and 3

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Which of the following is a nucleotide?

1.Adenylic acid

2.Adenosine

3.Adenoside

4.Both 1 and 3

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Nucleic acids  consist of        

1.Nucleotide only

2.Nucleoside only

3.Sugar+ Phosphate only

4.Nitrogenous bases only

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Nitrogenous bases are

1.Heterocyclic rings

2.Homocyclic rings

3.Organic compounds

4.Both 1 and 3

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Nitrogenous bases which contain 2 heterocyclic rings are

1.Adenine

2.Thymine

3.Guanine

4.Both 1 and 3

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Uridine is

1.Nucleotide

2.Nucleoside

3.Nitrogenous base

4.Amino acid

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Cytidylic acid is

1.Nucleotide

2.Nucleoside

3.Nitrogenous base

4.Amino acid

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Which one is correct

1.Adenine = Pyrimidine, Uracil= Purine

2.Adenine= Purine, Uracil= Purine

3.Adenine= Adenylic acid, Uracil=Uridylic acid

4.Adenine= Purine, Uracil= Pyrimidine

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Which of the following is true?

1. All the elements present in a sample of earth’s crust are also present in a sample of living tissue

2. Carbon and Hydrogen are  present in more amount in any living organism than earth’s crust.

3. Carbon and Hydrogen are present in more in living organisms than in non living matter.

4. All of the above

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The most abundant element present in human body is

1. Oxygen

2. Carbon

3. Nitrogen

4. Hydrogen

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