DNA does not have:
1. Adenine
2. Thymine
3. Cytosine
4. Uracil
The correct option about the presence of H-bond in nucleotides is:
1. A-T, G-C
2. A-G, T-C
3. G-T, A-C
4. A-A, T-T
In DNA, the complementary bases are:
1. Adenine and thymine; guanine and cytosine
2. Adenine and thymine; guanine and uracil
3. Adenine and guanine, thymine and cytosine
4. Uracil and adenine; cytosine and guanine
The couplings between base units of DNA is through :
1. | Hydrogen bonding | 2. | Electrostatic bonding |
3. | Covalent bonding | 4. | Van der waal's forces |
The correct statement regarding RNA and DNA, respectively is:
1. | The sugar component in RNA is ribose and the sugar component in DNA is 2'- deoxyribose. |
2. | The sugar component in RNA is arabinose and the sugar component in DNA is ribose. |
3. | The sugar component in RNA is 2'-deoxyribose and the sugar component in DNA is arabinose. |
4. | The sugar component in RNA is arabinose and the sugar component in DNA is 2'- deoxyribose. |
RNA does not contain:
1. Adenine
2. Uracil
3. Thymine
4. Cytosine
Nucleic acids are the polymers of :
1. Nucleosides
2. Nucleotides
3. Bases
4. Sugars
The complementary base of adenine in one strand to that in the other strand of DNA is:
1. Cytosine
2. Guanine
3. Uracil
4. Thymine
Carbon atoms of pentose sugars of nucleotides having phosphodiester linkage are:
1. 5' and 3'
2. 2' and 5'
3. 5' and 5'
4. '3 and 3'
The function of DNA is:
1. | To synthesize RNA. |
2. | To synthesize the necessary proteins. |
3. | To carry the hereditary characteristics from generation to generation. |
4. | All of the above. |