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Q. No.Histones are:
1.
Positively charged and basic amino acids
2.
Negatively charged and basic proteins
3.
Positively charged and acidic proteins
4.
Not found in bacteria
Subtopic: DNA Packaging |
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Subtopic: Transcription: I |
70%
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Which of the following anticodons will hybridize with the mRNA codon 5’ – AUG – 3’?
| 1. | 5’ – UAC – 3’ | 2. | 5’ – TAC – 3’ |
| 3. | 3’ – UAC – 5’ | 4. | 3’ – TAC – 5’ |
Subtopic: Translation |
72%
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Some amino acids are coded by more than one codon. Hence genetic code is:
| 1. | Unambiguous | 2. | Non-specific |
| 3. | Degenerate | 4. | Universal |
Subtopic: Genetic Code |
74%
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The length of DNA in a typical mammalian cell is approximately:
| 1. | 1.1 meter | 2. | 1.5 meter |
| 3. | 2.2 meter | 4. | 3.3 meter |
Subtopic: DNA Packaging |
91%
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A very low level of expression of the lac operon has to be present in the cell:
| 1. | When lactose is present | 2. | When lactose is absent |
| 3. | When glucose is absent | 4. | All the time |
Subtopic: Gene Regulation: Lac Operon |
62%
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Which of the following is not a feature of the double helix model of DNA?
| 1. | The two chains have anti-parallel polarity |
| 2. | A purine always comes opposite to a pyrimidine |
| 3. | The pitch of the DNA is 3.4 nm |
| 4. | The two chains are coiled in a left handed fashion |
Subtopic: DNA Double Helix |
91%
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In RNA splicing:
| 1. | Exons are removed and introns are joined together |
| 2. | Introns are removed and exons are joined together |
| 3. | Cistrons are removed and introns are joined together |
| 4. | Introns are removed and Cistrons are joined together |
Subtopic: Transcription |
89%
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Identifying all the genes in the genome that are transcribed into RNA is called:
| 1. | Expressed Sequence Tag | 2. | Sequence Annotation |
| 3. | Inverse PCR | 4. | Retrotransposition |
Subtopic: Human Genome Project |
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The last of 24 human chromosomes to be sequenced was:
1. Chromosome 1 and completed in 2003
2. Chromosome 1 and completed in 2006
3. Chromosome X and completed in 2003
4. Chromosome X and completed in 2006
Subtopic: Human Genome Project |
70%
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