Q. No.If there are 999 bases in RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1.
1
2.
11
3.
33
4.
333
DNA fragments are:
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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