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Q. No.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 × 106 base pairs
4.
Human beings
3.3 × 109 base pairs
Subtopic: The DNA |
52%
Level 3: 35%-60%
Hints
The process of RNA splicing shows the dominance of:
| 1. | DNA world | 2. | RNA world |
| 3. | Protein world | 4. | Microbial world |
Subtopic: Transcription |
93%
Level 1: 80%+
Hints
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 |
78%
Level 2: 60%+
Hints
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
1. Hershey and Chase
2. Marie Curie and Pierre Curie
3. Franklin and Wilkins
4. Meselson and Stahl
Subtopic: DNA Double Helix |
88%
Level 1: 80%+
Hints
In a transcription unit, with respect to structural genes, the promoter is located:
| 1. | Upstream and 5’ | 2. | Upstream and 3’ |
| 3. | Downstream and 5’ | 3. | Downstream and 3’ |
Subtopic: Transcription: I |
77%
Level 2: 60%+
Hints
Subtopic: Genetic Code: I | Genetic Code: II |
95%
Level 1: 80%+
Hints
DNA-dependent RNA polymerase catalyzes polymerization in:
| 1. | Only in 3’ – 5’ direction |
| 2. | Only in 5’ – 3’ direction |
| 3. | In both directions |
| 4. | In neither directions |
Subtopic: Transcription |
86%
Level 1: 80%+
Hints
Frederick Griffith discovered:
| 1. | DNA is the genetic material |
| 2. | RNA can be the genetic material |
| 3. | Streptococcus has two strains |
| 4. | Bacterial transformation |
Subtopic: Search for Genetic Material |
73%
Level 2: 60%+
Hints
In Avery, Macleod, and McCarty's experiment, the transformation of bacteria was inhibited by:
| 1. | Proteases | 2. | RNase |
| 3. | DNAs | 4. | None of these |
Subtopic: Search for Genetic Material |
Level 3: 35%-60%
Hints
If each strand of a dsDNA acts as a template for a new strand, the two daughter DNAs will be:
| 1. | Complementary to each other |
| 2. | Identical to the parental DNA |
| 3. | Similar to each other |
| 4. | Complementary to the parental DNA |
Subtopic: DNA Double Helix |
Level 3: 35%-60%
Hints
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