Role of Sigma (σ) Subunit in E. coli RNA Polymerase: Function, Mechanism 11. σ subunit of E. colt RNA polymerase DOES NOT (1) initiate transcription and fall off during elongation […]
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CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Which RNA Polymerase Subunit Is Released After Transcription Initiation in Prokaryotes? | CSIR NET Life Science MCQ
10. In prokaryotes which subunit of RNA polymerase is released after transcription initiation process? (1) α (2) β (3) β’ (4) σ MCQ: In prokaryotes, which subunit of […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Which RNA Polymerase Subunit Is Essential for Transcription Initiation? | CSIR NET Life Science MCQ
9. Mutation in which subunit of RNA polymerase holoenzyme would have defect in correct initiation of transcription? (1) α subunit (2) β subunit (3) β’ subunit (4) σ-subunit Mutation in […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Which Factor Ensures Stable Binding of RNA Polymerase to the Promoter? | CSIR NET Life Science MCQ
8. Which one of the following ensures stable binding of RNA polymerase at the promoter site? (1) DNA photolyase (2) Sigma factor (3) DNA glycosylase (4) Rec A Which one […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
What Is the Role of Sigma Factor σ⁷⁰ in E. coli? | CSIR NET Life Science MCQ Explained
7. Presence of sigma factor (σ70) in Escherichia colt facilitates (1) Sequence specific localization of RNA polymerase on the promoter regions of genes (2) Phosphorylation of C-terminal tail of RNA […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Which Sigma Factor Mutation Affects Thermal Stress Adaptation in E. coli? | CSIR NET Life Science MCQ
6. A mutation in which one of the following sigma factors may be a possible cause for E. colt failing to adapt in response to thermal stress? (1) σ70 (2) […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Which Sigma Factor Controls the Heat-Shock Response in Bacteria? | CSIR NET Life Science MCQ Explained
5. In bacteria, heat-shock response is primarily controlled by (1) Sigma S (σs) (2) Sigma 32 (σ32) (3) ma E (σE) (4) Sigma 70 (σ70) MCQ: In Bacteria, the […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Which of the Following Statements Is NOT Correct? | DNA vs RNA Synthesis MCQ Explained for CSIR NET Life Science
4. Which one of the following statements is NOT correct? (1) Together with proteins rRNA provides a site for polypeptide synthesis. (2) All DNA molecules are unbranched polymers of nucleotides. […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
mRNA Sequence from DNA in Plants – Transcription MCQ Explained for CSIR NET Life Science
3. In plant, if the sequence 5’-GATGGCACGAT-3’ is transcribe using opposite strand as template, the sequence of corresponding mRNA will be (1) 5’-CUACCGUGCUA-3’ (2) 5’-GAUGGCACGAU-3’ (3) 5’-AUCGUGCCAUC-3’ (4) 5’ATGTCCATCAUA-3’ […]
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If DNA Has the Sequence 5’-ATGCTCA-3’, What Will Be the mRNA Sequence?
2. If DNA have sequence 5’-ATGCTCA-3’, is used as template strand, then the sequence of mRNA will be (1) UAGCUTU (2) UACGAGU (3) UGAGCAU (4) TUCGAGT If DNA has […]
