Q. No.Subtopic: DNA Replication | Transcription |
90%
Level 1: 80%+
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Which of the following correctly identifies the components of a transcription unit in a prokaryotic genome?
| 1. | Promoter, RNA polymerase, and enhancer. |
| 2. | Promoter, structural gene, and terminator. |
| 3. | Operator, structural gene, and enhancer. |
| 4. | Promoter, structural gene, and spliceosome. |
Subtopic: Transcription |
97%
Level 1: 80%+
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The importance of a promoter in transcription is to:
| 1. | Terminate RNA synthesis. |
| 2. | Signal the RNA polymerase where to start transcription. |
| 3. | Modify the RNA after transcription. |
| 4. | Transport the RNA out of the nucleus. |
Subtopic: Transcription |
95%
Level 1: 80%+
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In eukaryotes, which of the following is removed from
initially transcribed RNA before it is transported to the
cytoplasm for translation?
(1) Intron
(2) 3’ Poly A tail
(3) Ribosome binding site
(4) 5’ cap
Subtopic: Transcription |
95%
Level 1: 80%+
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Removal of introns and joining the exons in a defined order in a transcription unit is called:
| 1. | splicing | 2. | tailing |
| 3. | transformation | 4. | capping |
Subtopic: Transcription: I | Transcription:II | Transcription |
93%
Level 1: 80%+
AIPMT - 2009
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What initiation and termination factors are involved in transcription in prokaryotes?
| 1. | σ and ρ , respectively |
| 2. | α and β , respectively |
| 3. | β and γ , respectively |
| 4. | α and σ , respectively |
Subtopic: Transcription: III | Transcription |
93%
Level 1: 80%+
NEET - 2019
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Subtopic: Transcription |
92%
Level 1: 80%+
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During transcription, RNA polymerase binds to DNA site
1. Regulator
2. Promoter
3. Enhancer
4. Receptor.
Subtopic: Transcription |
92%
Level 1: 80%+
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Which of the following RNAs is not required for the synthesis of protein?
1. rRNA
2. siRNA
3. mRNA
4. tRNA
Subtopic: Transcription |
92%
Level 1: 80%+
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Which of the following statements correctly distinguishes transcription in prokaryotes from that in eukaryotes?
| 1. | In both prokaryotes and eukaryotes, transcription occurs in the cytoplasm and involves RNA polymerase II. |
| 2. | In prokaryotes, transcription and translation are coupled, whereas in eukaryotes, transcription occurs in the nucleus and is followed by post-transcriptional modifications. |
| 3. | Prokaryotic transcription requires multiple types of RNA polymerases, unlike eukaryotic transcription which uses only one. |
| 4. | Eukaryotic mRNA is immediately functional after transcription, whereas prokaryotic mRNA undergoes extensive splicing and capping. |
Subtopic: Transcription |
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Level 1: 80%+
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