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Q. No.RNA is not the genetic material in:
1.
Tobacco mosaic virus
2.
QB bacteriophage
3.
HIV
4.
Archaebacteria
Subtopic: Search for Genetic Material |
77%
Level 2: 60%+
Hints
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 |
Subtopic: Translation |
79%
Level 2: 60%+
Hints
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” |
Subtopic: Search for Genetic Material |
90%
Level 1: 80%+
Hints
Insertion or deletion of how many bases will not cause a frameshift mutation?
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | Any number |
Subtopic: Mutations and Genetic Code |
78%
Level 2: 60%+
Hints
What defines a coding and a template strand in the transcription unit?
| 1. | Structural gene | 2. | Ori |
| 3. | Terminator | 4. | Promoter |
Subtopic: Transcription: I |
61%
Level 2: 60%+
Hints
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 |
Subtopic: DNA Replication: I |
82%
Level 1: 80%+
Hints
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 |
Subtopic: DNA vs RNA as Genetic Material |
52%
Level 3: 35%-60%
Hints
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 |
Subtopic: DNA vs RNA as Genetic Material |
60%
Level 2: 60%+
Hints
Subtopic: Transcription: I |
87%
Level 1: 80%+
Hints
DNA was first identified by:
| 1. | Friedrich Meischer | 2. | Phoebus Levene |
| 3. | Linus Pauling | 4. | Erwin Chargaff |
Subtopic: DNA Double Helix |
95%
Level 1: 80%+
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