- 1(current)
Q. No.Give below is a diagrammatic representation which indicates the secondary structure of DNA
Choose the correct option for the structures labelled as A, B, C and D
A B C D
1. Guanine Cytosine Adenine Thymine
2. Guanine Thymine Adenine Cytosine
3. Thymine Adenine Guanine Cytosine
4. Thymine Guanine Adenine Cytosine
Backbone of DNA is formed by :-
1. Sugar Phosphate Sugar
2. Nitrogen base Phosphate Sugar
3. Phosphate Nitrogen base Sugar
4. Base pairs
Nucleic acids exhibit
| 1. | Secondary structure |
| 2. | Tertiary structure |
| 3. | Quaternary structure |
| 4. | Both (2) & (3) |
Both the strands of the DNA are joined by
(1)Disulphide bond
(2)hydrogen bonds
(3)Glycosidic bonds
(4)phosphodiester bonds
Select the correct statement
| 1. | The base pairs in DNA are stacked 0.34 nm apart |
| 2. | The diameter of a right handed helical ds B-DNA molecules is 34 |
| 3. | Sugar-phosphate and hydrogen bonds are both present in a single nucleotide such as AMP |
| 4. | A and T of one strand compulsorily base pair with G and C respectively, of other strand is DNA |
If the sequence of bases in one of the DNA strand is is A G G A G A A, then the sequence of bases in the other complementary strand of DNA would be
1. C C T T C T T
2. T C T C T C C
3. T C C T C T T
4. C C T C T C T
In B-DNA, one full turn of the helical strand contains
1. 11 base pairs
2. 8 base pairs
3. 10 base pairs
4. 9 base pairs
In which of the following energy is released?
| 1. | Conversion of glucose into pyruvate |
| 2. | Formation of proteins from amino acids |
| 3. | Conversion of glucose into lactic acid |
| 4. | Both (1) & (3) |
- 1(current)
Q. No.
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