Q. No.Which of the following strands of DNA would be the
complement strand to G-C-A-T-C-G?
| 1. | C-G-T-A-G-C | 2. | G-G-A-T-G-C |
| 3. | A-A-C-G-A-T | 4. | T-T-G-C-T-A |
Subtopic: The DNA | DNA Double Helix |
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The central dogma of molecular biology is:
| 1. | DNA → RNA → Protein | 2. | Protein → RNA → DNA |
| 3. | RNA → DNA → Protein | 4. | DNA → Protein → RNA |
Subtopic: The DNA |
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RNA differs from DNA primarily because
| 1. | RNA lacks bases |
| 2. | RNA is always double-stranded |
| 3. | DNA contains ribose |
| 4. | RNA contains ribose and uracil |
Subtopic: The DNA |
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Which of the following correctly differentiates a nucleoside from a nucleotide?
| 1. | A nucleoside has a phosphate group attached to the nitrogenous base, whereas a nucleotide lacks a phosphate group. |
| 2. | A nucleotide contains only a pentose sugar, while a nucleoside consists of a nitrogenous base and phosphate. |
| 3. | There is no difference between a nucleoside and a nucleotide; they are interchangeable terms. |
| 4. | A nucleoside consists of a nitrogenous base and a pentose sugar, while a nucleotide additionally contains a phosphate group. |
Subtopic: The DNA |
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RNA can act as
| 1. | Adapter molecule |
| 2. | Catalytic molecule as well as Genetic material |
| 3. | Structural molecule |
| 4. | All of the above |
Subtopic: The DNA |
92%
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DNA fragments are:
| 1. | Positively charged |
| 2. | Negatively charged |
| 3. | Neutral |
| 4. | Either positively or negatively charged depending on their size |
Subtopic: The DNA |
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The number of base pairs in λ bacteriophage genome is
1. 4.7 kb
2. 48502 bp
3. \(6.6 \times 10^9~ \text {bp}\)
4. 159 kb
1. 4.7 kb
2. 48502 bp
3. \(6.6 \times 10^9~ \text {bp}\)
4. 159 kb
Subtopic: The DNA |
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Which of the following biomolecules can act as genetic material?
I: DNA
II: RNA
III: Proteins
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
I: DNA
II: RNA
III: Proteins
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: The DNA | DNA vs RNA as Genetic Material |
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Which of the following is not a feature of the double-helix model of DNA?
1. Antiparallel strands
2. Hydrogen bonding between bases
3. Complementary base pairing
4. Ribose sugar in the backbone
1. Antiparallel strands
2. Hydrogen bonding between bases
3. Complementary base pairing
4. Ribose sugar in the backbone
Subtopic: The DNA | DNA Double Helix |
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Retroviruses violate the Central Dogma because they:
| 1. | Synthesise protein directly from DNA |
| 2. | Synthesise DNA from RNA using reverse transcriptase |
| 3. | Skip transcription entirely |
| 4. | Produce RNA without a DNA template |
Subtopic: The DNA |
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