90 public questions tagged with this topic.
Enhancers are DNA sequences that increase the rate of transcription by interacting with transcription factors.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Human Genome Project and DNA Fingerprinting
miRNA (microRNA) is involved in post-transcriptional gene silencing by binding to target mRNA and preventing its translation.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Human Genome Project and DNA Fingerprinting
A repressible operon, such as the trp operon, is normally on but can be turned off when a repressor binds to it.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
The lac operon is an inducible operon that is activated in the presence of lactose to allow lactose metabolism.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
An inducible operon (such as the lac operon) is normally off but can be activated by an inducer like lactose.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
The lac operon is regulated by a repressor protein, which prevents transcription in the absence of lactose.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
An operon is a cluster of genes regulated by a single promoter, commonly found in prokaryotic cells.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
The lac operon is activated in the presence of lactose, which inactivates the repressor and allows transcription.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
Enhancers increase transcription efficiency by binding to activator proteins and promoting RNA polymerase activity.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
An enhancer is a DNA sequence that increases transcription levels when bound by transcription factors.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
A transcriptional repressor binds to the operator region of an operon to prevent RNA polymerase from initiating transcription.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
The repressor protein binds to the operator region in the lac operon to block transcription in the absence of lactose.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Regulation of Gene Expression - Lac Operon
