Which of the following is the correct structure of a monomer present in the structure of a DNA molecule?
1.   2.
3. 4.
Subtopic:  Nucleic Acid: Nucleotides | The DNA |
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In the given diagram of DNA double helix, what would be the correct values of 1, 2, and 3 in nanometre?
1 2 3
1. 1.0 3.4 34
2. 2.0 0.34  3.4
3. 2.0 3.4 0.34
4. 4.0 3.4 0.34
Subtopic:  The DNA |
 75%

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Identify the given nitrogenous base:
1. Thymine 2. Uracil
3. Adenine 4. Guanine
Subtopic:  Nucleic Acid: Nucleotides | The DNA |
 78%
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In the given diagram showing two helices A and B:
    
1. A is left handed helix and B is right handed helix
2. A is right handed helix and B is left handed helix
3. Both are right handed helices
4. Both are left handed helices

Subtopic:  The DNA |
 59%

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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 |
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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 |
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The pitch of DNA helix is:

1. 0.34 nm 2. 3.4 nm
3. 34 nm 4. 340 nm
Subtopic:  Nucleic Acid | The DNA |
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In a nucleic acid:
I: a phosphate moiety links the 5’ carbon of one sugar of one nucleotide to the 1’ carbon of the sugar of the succeeding nucleotide.
II: the backbone of the strand is made up of alternate sugar and nitrogenous bases.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  The DNA | Double Helix : Watson & Crick |
 52%
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