Study the steps of transcription and the function of RNA polymerase in converting DNA into RNA. Practice with questions on initiation, elongation, and termination.
The promoter is the site where RNA polymerase binds to initiate transcription in an operon.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
The promoter is the region of a gene where RNA polymerase binds to initiate transcription.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
Enhancers do not decrease gene transcription; they enhance it by increasing the efficiency of RNA polymerase binding.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
A promoter is a DNA sequence where RNA polymerase binds to initiate transcription.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
The terminator sequence signals the end of transcription in prokaryotes.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
The sigma (Ï) factor helps RNA polymerase recognize and bind to the promoter during transcription initiation in bacteria.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
Prokaryotes have a single RNA polymerase, unlike eukaryotes which have multiple types of RNA polymerases.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
The terminator sequence signals RNA polymerase to stop transcription and release the RNA transcript.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
The non-coding strand (also called the template strand) serves as the template for RNA synthesis in transcription.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
Prokaryotic mRNA does not undergo extensive post-transcriptional modifications like splicing, unlike eukaryotic mRNA.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
Transcription produces mRNA from DNA, which is later translated into protein.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
The TATA box is a promoter sequence that binds transcription factors and RNA polymerase to initiate transcription.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Transcription - Mechanism and RNA Polymerase
