Q. No.
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RNA is not the genetic material in:
| 1. | Tobacco mosaic virus | 2. | QB bacteriophage |
| 3. | HIV | 4. | Archaebacteria |
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The structure of the ribosome is made of:
| 1. | rRNA and Proteins |
| 2. | rRNA and Polysaccharides |
| 3. | mRNA, rRNA and tRNA |
| 4. | RNA, DNA and Proteins |
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A molecule that can act as a genetic material must fulfil all the following criteria except:
| 1. | It should be able to generate its replica |
| 2. | It should chemically and structurally be stable |
| 3. | It should provide scope for rapid mutations |
| 4. | It should be able to express itself in the form of “Mendelian Characters” |
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Insertion or deletion of how many bases will not cause a frameshift mutation?
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | Any number |
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What defines a coding and a template strand in the transcription unit?
| 1. | Structural gene | 2. | Ori |
| 3. | Terminator | 4. | Promoter |
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The DNA dependent polymerases catalyze:
| 1. | Only in 3’ – 5’ direction |
| 2. | Only in 5’ – 3’ direction |
| 3. | In both directions |
| 4. | In neither directions |
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DNA is structurally and chemically more stable than RNA because of the following except:
| 1. | It has thymine instead of uracil |
| 2. | 2’ –OH is absent in DNA |
| 3. | It replicates itself based on complementary base pairing |
| 4. | It does not have any catalytic role |
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Who proposed a semi-conservative mode of replication for DNA?
| 1. | Watson and Crick | 2. | Meselson and Stahl |
| 3. | Hershey and Chase | 4. | Beadle and Tatum |
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To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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