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Q. No.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 |
95%
Level 1: 80%+
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At any instant, RNA is transcribed on which of the following strands of DNA?
| 1. | Coding strand | 2. | Template strand |
| 3. | Lagging strand | 4. | Leading strand |
Subtopic: Transcription: I |
83%
Level 1: 80%+
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To form a nucleoside, a nitrogenous base is linked to a pentose sugar:
| 1. | Through a P-Glycosidic linkage at carbon atom number 1 |
| 2. | Through a P-Glycosidic linkage at carbon atom number 5 |
| 3. | Through an N-Glycosidic linkage at carbon atom number 1 |
| 4. | Through an N-Glycosidic linkage at carbon atom number 5 |
Subtopic: The DNA |
77%
Level 2: 60%+
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The lac Y gene codes for permease, which increases the permeability of the cell to:
| 1. | Glucose | 2. | Galactose |
| 3. | cAMP | 4. | β-galactosides |
Subtopic: Gene Regulation: Lac Operon |
72%
Level 2: 60%+
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Nucleosomes constitute the repeating subunits of a structure in the nucleus called:
| 1. | Nucleoid | 2. | Chromatid |
| 3. | Solenoid | 4. | Chromatin |
Subtopic: DNA Packaging |
74%
Level 2: 60%+
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In the genetic code, the codon UUC codes for:
| 1. | Methionine | 2. | Phenylalanine |
| 3. | Tyrosine | 4. | Valine |
Subtopic: Genetic Code |
76%
Level 2: 60%+
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Which of the following helps in the termination of transcription?
| 1. | Sigma factor | 2. | Translocase |
| 3. | Ubiquitin | 4. | Rho factor |
Subtopic: Transcription |
93%
Level 1: 80%+
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Which enzyme polymerizes RNA with defined sequences in a template independent manner?
| 1. | Peptidyl transferase |
| 2. | RNA polymerase |
| 3. | Reverse transcriptase |
| 4. | Polynucleotide phosphorylase |
Subtopic: Genetic Code |
57%
Level 3: 35%-60%
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Which of the following is true for both transcription and DNA replication?
| 1. | The principle of complementarity governs the processes |
| 2. | Only if the two strands act as a template |
| 3. | Only a segment of both strands is involved |
| 4. | Adenine base pairs with thymine |
Subtopic: DNA Replication | Transcription |
80%
Level 1: 80%+
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Histones are rich in amino acids:
1. Arginine and Lysine
2. Arginine and Leucine
3. Arginine and Isoleucine
4. Aspartate and Glutamate
1. Arginine and Lysine
2. Arginine and Leucine
3. Arginine and Isoleucine
4. Aspartate and Glutamate
Subtopic: DNA Packaging | Solved Problems |
96%
Level 1: 80%+
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