What biomolecule are promoters and enhancers composed of?

Q: What are strong promoters?

A: The strength of a promoter is the rate of transcription of the gene controlled by this promoter.

Q: What does the allostery of the regulatory protein enable?

A: The catalysts that are present in the livings cells are called enzymes. The enzymes are protein…

Q: What epigenetic modification(s) would you expect to see near a gene promoter where transcription is…

A: The histones undergo methylation and acetylation for close and loose packaging of the DNA. The…

Q: Where do enhancers bind? Are enhancers gene specific

A:

Q: How can binding of activators to an enhancer located far from the promoter influence transcription?

A: Activators can help in gene transcription by signaling the enzyme RNA polymerase to move beyond the…

Q: How do ncRNAs regulate gene expression, and how would their pervasiveness affect the Central Dogma?

A: The non-coding region of RNAs [ncRNAs] is a part of the RNA molecule which was not involved in the…

Q: describe the 4 types of suppressors inducer, repressor, promoter, and operator.

A: In genetics, a silencer is a DNA sequence capable of binding transcription regulation factors,…

Q: Pre-mRNAs in mitochondria are converted to maturemRNAs through which process?

A: A precursor mRNA is the molecule in the primary transcript which gets converted to mRNA(messenger)…

Q: What are the advantages of having both an activatorand a repressor protein?

A: Gene expression is regulated by the turning off of the expression of genes when they are not…

Q: What is the purpose of CAP and CAMP in gene regulation?

A: A wide range of mechanism carried out by the cells that act to induce or repress the synthesis of…

Q: What is the function of the promoter

A: Promoter is the site on DNA where proteins such as RNA polymerase and some transcrption factors…

Q: Why promoter sequences are essential ?

A: The process of making an RNA copy of a gene sequence is known as transcription. This copy, known as…

Q: If a gene is repressible and under positive control, what kind of effector molecule and regulatory…

A: Gene regulation vary in prokaryotes and eukaryotes. Prokaryotic genes regulation may administrated…

Q: Difference between the promoter and terminator?

A: Transcription unit is the sequence of nucleotides in the DNA molecule that encodes for the RNA…

Q: How 6mA controls gene expression ?

A: 6mA is N6-Methyladenine that has epigenetic roles in DNA  (deoxyribonucleic acid) modification in…

Q: Explain in detail the role of super-enhancers. Give some examples. How the super-enhancers can be…

A: There are trillions of cells in the physical structure. They give the body structure, absorb…

Q: What are three similarities and three differences between Chromatin Remodeling and microRNAs?

A: Chromatin remodelling is basically chemical modification of the chromatin structure for uncoiling…

Q: What are core promoters in relation with DNA ?

A: Deoxyribonucleic acid(DNA) is a molecule comprised of two polynucleotide chains coiled around each…

Q: What proteins bind to a promoter?

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

Q: How many transcriptional units are there for rRNA and how they are processed?

A: When a cell divides, it creates one copy of its genetic information — in the form of DNA molecules —…

Q: Distinguish between the cis-acting regulatory elements referred to as promoters and enhancers.

A: The machinery of the transcription has two major components, which are trans-acting and cis-acting…

Q: Enhancers contain binding sites for transcription factors that regulate transcription. are…

A: Enhancers  Enhancers are found in the upstream of DNA. They are short sequence about 50 to 1500 base…

Q: 37. Which of the following motifs can be used to bind protein dimers? a.) helix-loop-helix b.) zinc…

A: Motif is nothing but a short conserved sequence pattern, which is associated with protein function…

Q: Which sequence is most likely to be found in a promoter? a) CGGTGTATATCGTAC b) GTACAGTCATCCCGT c)…

A: Promoter It is a DNA sequence that controls whether a gene is turned on or off. The promoter…

Q: a) What is a gene promoter? b) What proteins bind to a promoter? c) What do those proteins do to…

A: a) A gene promoter is a region of DNA located at the beginning of a gene sequence. It serves as a…

Q: How do we know that small noncoding RNA molecules canregulate gene expression?

A: A non-coding RNA is a kind of RNA molecule that is not translated into a protein. The DNA sequence…

Q: What is the difference between a promoter and an enhancer?

A: Promoter and enhancer are the regulatory elements of the genes. They don't produce any RNA or…

Q: Are the remaining 98% of human DNA are non-coding RNAs (ncRNAs: sncRNA and lncRNA) which are…

A: Beginning with the discovery of RNA and ribosomal RNA transfers in the 1950s, coded RNAs (ncRNAs)…

Q: What is the significance of gene expression in biochemical processes?

A: Gene expression, as the name suggests, is the 'expression' of genes by forming products such…

Q: How do ncRNAs regulate gene expression, and how would their pervasiveness affect the Central Dogma?

A: Non-coding RNAs (ncRNAs) are functional RNA molecules that are transcribed from the mammalian genome…

Q: What is an operon? Describe the functions of regulators, promoters,and operators.

A: The structure responsible for the regulation of genes in order to synthesize the associated proteins…

Q: How to Find gene-regulatory regions, such as promoters andenhancers ?

A: One of the most difficult tasks facing scientists in the post-genomic age is unravelling the…

Q: What are conditions for Histone modification ?

A: The length of the DNA is way too high to accommodate in the nucleus. Therefore the DNA is packed to…

Q: Explain what are dispersed core promoters ?

A: Transcription is the process of transferring information from DNA to a single-stranded molecule…

Q: What are enhancers and How do enhancers work?

A: Transcription is defined as the transcribing the DNA sequence into  RNA sequence by using the DNA as…

Q: What is allosteric repressor ?

A: Biology terms are fundamental concepts and terms used in biology, which is the study of life and…

Q: How do we know that core-promoter elements are importantfor transcription?

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

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.