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Q. No.Any mistakes during DNA replication by the enzyme would result into:
1.
Cancer
2.
Apoptosis
3.
Cell fragmentation
4.
Mutation
Subtopic: DNA Replication |
91%
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In a transcription unit, RNA polymerase binds to:
| 1. | Ori | 2. | Promoter |
| 3. | Operator | 4. | Structural gene |
Subtopic: Transcription: I |
84%
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The distance between a base pair in the DNA double helix is approximately:
| 1. | 2.0 nm | 2. | 0.34 nm |
| 3. | 20 nm | 4. | 3.4 nm |
Subtopic: DNA Double Helix |
83%
From NCERT
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Subtopic: Transcription |
93%
From NCERT
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In some viruses, the flow of genetic information is from RNA to DNA. These viruses are:
| 1. | Reverse transcriptases | 2. | Reoviruses |
| 3. | Ribozymes | 4. | Retroviruses |
Subtopic: DNA Double Helix |
63%
From NCERT
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What is added to the 5’ end of hnRNA in Eukaryotes?
| 1. | Poly A tail |
| 2. | Methyl cytosine triphosphate |
| 3. | Methyl guanosine triphosphate |
| 4. | Poly U tail |
Subtopic: Transcription: I |
84%
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Identify the incorrectly matched pair:
| Organism | Length of DNA | |
| 1. | Bacteriophage ϕ 174 | 5386 base pairs |
| 2. | Bacteriophage Lambda | 48502 base pairs |
| 3. | Escherichia coli | 4 X 106 base pairs |
| 4. | Human beings | 3.3 X 109 base pairs |
Subtopic: The DNA |
50%
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The process of RNA splicing shows the dominance of:
| 1. | DNA world | 2. | RNA world |
| 3. | Protein world | 4. | Microbial world |
Subtopic: Transcription |
92%
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At which position in the ribose is an additional –OH present [with respect to Deoxyribose]?
| 1. | 1’ | 2. | 2’ |
| 3. | 3’ | 4. | 5’ |
Subtopic: The DNA |
77%
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Watson and Crick based their model of DNA on X-ray diffraction data produced by:
| 1. | Hershey and Chase | 2. | Marie Curie and Pierre Curie |
| 3. | Franklin and Wilkins | 4. | Meselson and Stahl |
Subtopic: DNA Double Helix |
88%
From NCERT
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