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Q. No.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 |
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Subtopic: Transcription |
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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 |
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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 |
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Subtopic: Genetic Code: I | Genetic Code: II |
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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 |
Subtopic: Search for Genetic Material |
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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 |
Subtopic: Search for Genetic Material |
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Which of the following is a pyrimidine base found in DNA?
| 1. | Adenine | 2. | Guanine |
| 3. | Uracil | 4. | Cytosine |
Subtopic: The DNA |
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Subtopic: Translation |
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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 |
Subtopic: DNA Packaging |
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