Are all genes transcribed in differentiated cells?

Q: How is Gene Expression Regulated?

A: In the central dogma,  the Ribonucleic acid (RNA) is formed from the template of Deoxyribonucleic…

Q: How do most transcription factors determine which genes they act upo

A: Protein synthesis through genes occurs in two steps: The DNA sequence present in the gene is…

Q: Distinguish between proto-oncogenes and tumorsuppressor genes.

A: The proto-oncogenes are those genes, which promote cell cycle and inhibit apoptosis of the cells.…

Q: How may the environment influence gene expression?

A: A gene is a stretch of nucleotides present in the DNA molecule. It encodes information for the…

Q: Why are some chromosomal regions amplified/deleted in a specific manner in certain tumor types?

A: Chromosomal amplification: Chromosomal amplification can be explained as the increase in the amount…

Q: What molecules and proteins involved in transcription?

A: Transcription is a process by which the genetic information from the DNA is transcribed into the RNA…

Q: How do microRNAs regulate epigenetic mechanisms during development?

A: BASIC INFORMATION  MicroRNA  It is also written as miRNA These are RNA molecule which are non -…

Q: What are some other ways that a cell controls which genes are expressed?

A: Introduction  A gene is nothing but a specific sequence of deoxy ribose nucleotides and which is…

Q: Where do enhancers bind? Are enhancers gene specific

A:

Q: Where Transcriptionally active genes are located ?

A: Genes are the basis of heredity. They are transferred from the preceding generation to the…

Q: In a Ccpp individual, which functional enzyme ismissing? Is it the enzyme encoded by the C or P…

A: Recessive Allele is the result of a loss of function mutation.

Q: What are non-histone chromosomal proteins?

A: In the nucleus of each cell in higher organisms, the DNA molecule is packaged into thread-like…

Q: Can pseudogenes be transcribed?

A: Genes are segments of deoxyribonucleic acid (DNA) that carries genetic information. Genes possess…

Q: How Is the Information in a Gene Transcribed into RNA?

A: CENTRAL DOGMA:- The whole process of Central Dogma involves two processes:- 1) When DNA changes into…

Q: Where do regulatory transcription factors bind relative to a gene sequence?

A: Transcription factors are proteins that affect the rate of gene transcription by binding to…

Q: What types of genes are transcribed by RNA polymerases I, II, and III?

A: BASIC INFORMATION RNA POLYMERASE It is a type of enzyme which has a function to copy the sequences…

Q: What are proximal promoter elements ?

A: Gene is the structural and functional unit in the DNA. Genes are composed of nucleotide nitrogenous…

Q: How Transcription factors can modulate gene expression ?

A: Transcription is the part of the central dogma which is required to make mRNA copies from the DNA.…

Q: How does DNA methylation repress transcription?

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

Q: What is gene expression? What processes are involved to express a gene in a cell?

A: Genes are known as unit of inheritance as it being component of genetic material. It controls the…

Q: How the gene is expressed in the cell ?

A: Gene - A gene is defined as a polynucleotide chain that consists of segments each controlling a…

Q: How do mRNA levels correspond with phenotypes?.

A: * phenotype means the observable physical trait of an organism like appearance and development and…

Q: Define the epigenetic mechanisms - regulation of gene expression by noncoding RNA molecules ?

A: Epigenetics is the study of inherited changes in phenotype (appearance) or gene expression that are…

Q: At what stage in gene expression are introns removed?

A: Introns are the non-coded regions, which are removed from the nucleotide sequence.

Q: How can three transcription regulators during development create eight different cell types?

A: The expression of genes is regulated mostly at the promoter of the genes by the transcription…

Q: Which is the biological molecule that contains the genetic information that is transmitted…

A: The genome of an organism is defined as the whole genetic information that is inherited from one…

Q: How Are Genes Transcribed in Bacteria?

A: In general, an deoxyribonucleic acid can contain genes that perform within the same method. for…

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: Do all genes have promoters?

A: In gene expression transcription is the first step. Transcription is the process of expressing genes…

Q: Are de novo mutations passed on?How many de novo gene mutations does the average person have?

A: De novo mutation is a genetic alteration that is present for the first time in a family member. It…

Q: Explain how does the hnRNA becomes the Mrna?

A: DNA contains the instructions for protein synthesis. Proteins in turn determine structure and…

Q: Describe what must happen for a cell type-specific gene to be transcribed in a cell of that type.

A: DNA is deoxyribonucleic acid, and it is the molecule that contains the genetic instructions housed…

Q: Is chromatin structure is altered in transcription?

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

Q: How are tissue-specific transcription factors regulated? Identify three different ways

A: Transcription factors are the type of proteins that bind to the specific sites in the DNA and…

Q: How is genetic expression regulated?

A: Genetic expression is also known as gene expression.  It is the process of the transfer of…

Q: "Transcriptome Analysis Reveals Profiles of Expressed Genes in Cellsand Tissues". Define this ?

A: Transcriptome analysis is the study of the transcriptome using high-throughput methods, such as…

Q: Do Transposable Elements Move within the Genome ?

A: There has been coexistence of transposons with the eukaryotes for a long period of time. Transposons…

Q: Why are some genes expressed and some not?

A: Gene expression is dependent on many factors Genotype of the individual Environmental Status Gene…

Q: What is gene targeting in embryonic stem cells?

A: Introduction Gene targeting in the embryonic stem cells through homologous recombination techniques…

Q: How do cells control gene expression? How do cell "switch" genes on/off? Draw a flow chart to match?

A: The genes are regulated from time-to-time to make changes in the organisms. The way in which…

Q: what are the normal funtions of the p53 gene

A: p53 gene is also called as tumour suppressor gene or Tp53 gene produces the protein called tumour…

Q: How is it that only a few transcription factors can initiate cell type specific gene expression?

A: Transcription is the process of copying (transcription) a gene's DNA sequence into an RNA molecule.…

Q: Can Gene Expression Be Regulated Oncethe Transcript Has Been Synthesized?

A: Introduction: The working part of DNA that mainly codes for a protein is a gene. The process by…

Q: What does the ob gene code for in mice? How does it work? Is this a gene found only in animals, or…

A: The recently identified mouse obese (ob) gene apparently encodes a secreted protein that may…