Which of the following monosaccharide is pentose sugar?

1. Mannose  2. Ribose
3. Galactose 4. Glucose

Subtopic:  Nucleic Acid |
 87%
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The following diagram shows the molecular structure of:

                     

1. A hexose sugar
2. An aromatic amino acid
3. A nitrogenous base found in RNA
4. An important constituent of a DNA nucleotide.
Subtopic:  Nucleic Acid |
 80%
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Choose the incorrect match.

1.

Arachidonic acid

-

20C fatty acid including carboxyl carbon

2.

Lecithin

-

Phospholipid found in cell membrane

3.

Cytidine

-

Nitrogenous base of DNA

4.

Vinblastin

-

Secondary metabolite used as anti-cancer drug

 

Subtopic:  Nucleic Acid |
 71%
From NCERT
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The molecule represented is :-

1. uridine and it is pyrimidine
2. uridylic acid and it is nucleoside
3. uridylic acid and it is nucleotide
​​​​​​​
4. uridine and it is nucleoside
Subtopic:  Nucleic Acid |
 66%
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The structure given below is of

                          

1. A purine base

2. Adenosine

3. Adenylic acid

4. A pyrimidine base

Subtopic:  Nucleic Acid |
 81%
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The compound shown below:

1. is a component of the ATP molecule

2. is most commonly found in ori region of DNA

3. can have enzymatic activity

4. may be a component of the cell membrane

Subtopic:  Nucleic Acid |
From NCERT
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