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Q. No.In eukaryotes, during post-transcriptional modification of hnRNA:
1.
methyl guanosine triphosphate is added to the 5’ end and
adenylate residues are added at the 3‘ end
2.
methyl guanosine triphosphate is added to the 3’ end and
adenylate residues are added at the 5‘ end
3.
methyl adenosine triphosphate is added to the 5’ end and
guanylate residues are added at the 3‘ end
4.
methyl adenosine triphosphate is added to the 3’ end and
guanylate residues are added at the 5‘ end
adenylate residues are added at the 3‘ end
adenylate residues are added at the 5‘ end
guanylate residues are added at the 3‘ end
guanylate residues are added at the 5‘ end
Subtopic: Transcription |
84%
From NCERT
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A gene is said to be polymorphic if it has more than one variant and the frequency of the least common variant is at least:
1. 0.01
2. 0.1
3. 0.5
4. 1.0
1. 0.01
2. 0.1
3. 0.5
4. 1.0
Subtopic: The DNA |
58%
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The sequence on the template strand of DNA which will be responsible for the insertion of the first amino acid into a protein will be:
1. TAC
2. AUG
3. CAT
4. ACT
1. TAC
2. AUG
3. CAT
4. ACT
Subtopic: Translation | Genetic Code |
From NCERT
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Consider the two statements:
| Statement I: | In eukaryotes, RNA polymerase II transcribes hnRNA. |
| Statement II: | There is a single RNA polymerase that catalyses transcription of all types of RNA in bacteria. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is correct |
Subtopic: Transcription |
86%
From NCERT
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Subtopic: Human Genome Project |
75%
From NCERT
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What percent of the human DNA actually codes for proteins?
1. Less than 2%
2. Around 20%
3. Between 35% and 40%
4. More than 98%
1. Less than 2%
2. Around 20%
3. Between 35% and 40%
4. More than 98%
Subtopic: Human Genome Project |
94%
From NCERT
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If a sample of single stranded DNA contains 23 % adenine bases of total, what is the expected percentage of guanine bases in this sample of DNA?
| 1. | 23 |
| 2. | 27 |
| 3. | 46 |
| 4. | Cannot be determined on the basis of information given |
Subtopic: DNA Double Helix |
From NCERT
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What argument will be most potent to discard proteins as possible molecules for genetic information storage in humans?
1. They have very limited diversity
2. They are not macromolecules
3. They do not replicate
4. They are unstable biomolecules
Subtopic: Search for Genetic Material |
84%
From NCERT
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In an E. coli cell, the enzyme permease:
1. is present only when glucose levels are very low
2. is present only when lactose is freely available
3. is present in a low amount all the time
4. is not required for using lactose as a source of energy by the cell
1. is present only when glucose levels are very low
2. is present only when lactose is freely available
3. is present in a low amount all the time
4. is not required for using lactose as a source of energy by the cell
Subtopic: Gene Regulation: Lac Operon |
71%
From NCERT
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Consider the two given statements:
| Assertion (A): | Today, DNA from a single cell is enough to perform DNA fingerprinting analysis. |
| Reason (R): | The use of PCR has increased the sensitivity of DNA fingerprinting. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | (A) is True but (R) is False |
| 3. | (A) is False but (R) is True |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A) |
Subtopic: DNA Fingerprinting |
80%
From NCERT
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