Q. No.DNA fragments are:
1. Positively charged
2. Negatively charged
3. Neutral
4. Either positively or negatively charged depending on their size
1. Positively charged
2. Negatively charged
3. Neutral
4. Either positively or negatively charged depending on their size
During DNA replication, Okazaki fragments are used to elongate the :
1. leading strand towards the replication fork
2. lagging strand towards the replication fork
3. leading strand away from the replication fork
4. lagging strand away from the replication fork
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The final proof for DNA as the genetic material came from the experiments of
1. Griffith
2. Hershey and Chase
3. Avery, Macleod and McCarty
4. Hargobind Khorana
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In prokaryotes:
| 1. | A typical nucleus is not seen and DNA is scattered throughout the cell |
| 2. | A typical nucleus may sometimes be present and DNA is scattered throughout a cell |
| 3. | A typical nucleus is not seen but DNA is not scattered throughout the cell |
| 4. | A typical nucleus may sometimes be present but DNA is not scattered throughout the cell |
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Transcriptionally, active chromatin is termed as:
| 1. | Heterochromatin | 2. | Euchromatin |
| 3. | Prechromatin | 4. | Prochromatin |
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The protein synthesizing machinery of a cell has evolved around:
| 1. | DNA | 2. | RNA |
| 3. | Protein itself | 4. | Viroids |
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Viruses grown on radioactive sulfur contain:
| 1. | Radioactive proteins but not DNA |
| 2. | Radioactive DNA but not proteins |
| 3. | Radioactive proteins and DNA |
| 4. | Nonradioactive DNA and protein |
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In a strand of nucleic acid, two nucleotides are linked together by:
1. 3’ – 5’ phosphodiester bond
2. 5’ – 3’ phosphodiester bond
3. 2’ – 5’ phosphodiester bond
4. 3’ – 1’ phosphodiester bond
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