In transcription which subunit in bacteria is largely responsible for recognizing the promoter?

Q: Describe three ways that the function of a regulatory transcription factor can be modulated.

A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…

Q: Draw a labelled diagram to support the basic transcription steps

A: Transcription is the method of replicating hereditary data held in DNA into RNA. This process takes…

Q: What are two differences between promoters and enhancers? (Hint: where are they located relative to…

A: Transcription is a fundamental molecular biology process that uses genetic information encoded in…

Q: Compare the roles of general and specific transcriptionfactors in regulating gene expression.

A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…

Q: If a mutation occurred in the pRM promoter that rendered this promoter as ‘nonfunctional and unable…

A: Promoter sequence is present in the upstream of the gene sequence , is the part of dna where rna…

Q: The Lac operon is a common example of prokaryotic control of gene expression. In what condition is…

A: Lac operon consists of structural genes such as lacZ, lacY, and lacA which are responsible for the…

Q: Describe how a regulatory transcription factor binds to a regulatory element.

A: Transcription is the first step in central dogma of protein synthesis. It involves formation of…

Q: What proteins bind to a promoter?

A: The regulation of gene expression at promoter regions involves a complex interplay of diverse…

Q: Describe the function of eukaryotic enhancers in transcription.

A: Transcription is the process of converting information from one form into another. In biology, it is…

Q: Describe events associated with the process of transcription in eukaryotic cells. How is the process…

A: RNA polymerase II transcribes protein-coding genes into messenger RNAs (mRNAs) that carry the…

Q: Explain how the expression of a single gene can be quickly,efficiently,and specifically shut down at…

A: Transcriptional in molecular biology and genetics is a process that regulates the conversion of DNA-…

Q: How do siRNAs and miRNAs target specific mRNAs for degradation or for the repression of translation?

A: MicroRNAs or miRNAs are a group of small (about 22 nucleotides) noncoding RNAs that participate in…

Q: Explain how an α helix in a transcription factor protein is able to function as a recognition helix.

A: Transcription is the first step in central dogma of protein synthesis. It involves formation of…

Q: Explain how a regulatory transcription factor exerts its effects via TFIID or mediator.

A: Transcription is a process in which the nucleotide sequences of a gene are transcribed into the mRNA…

Q: Why is an NFR needed at the core promoter for transcription to occur?

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Describe the promoter structure in prokaryotes and eukaryotes.

A: A gene's "promoter", which serves as a control point for controlled gene transcription, is a…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.