Q. No.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
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Frederick Griffith discovered:
| 1. | DNA is the genetic material |
| 2. | RNA can be the genetic material |
| 3. | Streptococcus has two strains |
| 4. | Bacterial transformation |
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In Avery, Macleod, and McCarty's experiment, the transformation of bacteria was inhibited by:
| 1. | Proteases | 2. | RNase |
| 3. | DNAs | 4. | None of these |
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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 |
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Which of the following is a pyrimidine base found in DNA?
| 1. | Adenine | 2. | Guanine |
| 3. | Uracil | 4. | Cytosine |
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A typical nucleosome unit consists of about:
| 1. | 60 base pairs | 2. | 140 base pairs |
| 3. | 200 base pairs | 4. | 400 base pairs |
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The core RNA polymerase is capable of catalyzing which steps of transcription?
| 1. | Initiation only | 2. | Elongation only |
| 3. | Termination only | 4. | All of these |
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At any instant, RNA is transcribed on which of the following strands of DNA?
| 1. | Coding strand | 2. | Template strand |
| 3. | Lagging strand | 4. | Leading strand |
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To form a nucleoside, a nitrogenous base is linked to a pentose sugar:
| 1. | Through a P-Glycosidic linkage at carbon atom number 1 |
| 2. | Through a P-Glycosidic linkage at carbon atom number 5 |
| 3. | Through an N-Glycosidic linkage at carbon atom number 1 |
| 4. | Through an N-Glycosidic linkage at carbon atom number 5 |
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