Q: How is Gene Expression Regulated?
A: In the central dogma, the Ribonucleic acid (RNA) is formed from the template of Deoxyribonucleic…
Q: Describe the difference between positive control andnegative control of gene expression.
A: An Operon is a unit of structure and function that consists of the clusters of regulatory genes…
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: what carries genetic information
A: Genetic information includes information about an individual's genetic tests and the genetic tests…
Q: How regulation of gene expression can alter gene function?
A: Genes are the structural and functional units of heredity. Genes carry deoxyribonucleic acid (DNA),…
Q: Describe how a cell can increase or decrease its expression of particular genes, and why this…
A: An increase or decrease in gene expression can regulate the synthesis or inhibition of proteins.…
Q: Define the Transcriptional Control under the concept of DNA ? What are Transcription factors ?
A: Transcription is the first of a few stages of DNA based gene expression in which a specific fragment…
Q: What is the role of miRNA and siRNA in regulation of gene expression?
A: In eukaryotic cells, the regulation and control of gene expression is a very complicated process.…
Q: Describe the informational units or Genes.
A: Chromosomes are thread-like structures that are located in the nucleus. It is composed of protein…
Q: what is the role and relevence of chromatin in gene expression
A: Chromatin: It is the mass of genetic materials composed of DNA and Proteins which are condensed to…
Q: Control of Gene Expression, type of of Gene Expression.
A: Ans: Gene expression: Gene is expressed meaning when DNA is transcribed from the coding region by…
Q: Describe the relationship between protein expression level and protein activity level. How could a…
A: Protein formation is a very crucial step because it is a protein which is the ultimate functional…
Q: What are The Effects of Mutations on Gene Expression?
A: Mutation are the changes in nucleotide sequences. There are different types of mutations such as -…
Q: How would a change to the sequence of nucleotides in a DNA segment affect the mRNA transcribed from…
A: First, let us discuss about the mRNA. The mRNA is a single-stranded molecule of the RNA which is…
Q: Genes are located in which type of molecule?
A: The cells are the fundamental functional and structural unit of all living forms except for viruses.…
Q: Explain how DNA transcription occurs and what is formed by this process.
A: The central dogma of molecular biology, given by Dr. Francis Crick states that the information…
Q: transcription and translation. What
A: Transcription is the process of copying a gene's DNA sequence to make an RNA molecule and…
Q: What are the stages in gene expression?
A: The mechanism by which the information encoded in a gene is used to guide the assembly of a protein…
Q: Describe the main events in the transcription of geneticinformation from DNA into mRNA?
A: Introduction A genome is consists of transcriptionally active genes. These genes form mRNA as they…
Q: Genes are made by_______?
A: An organism contains genetic material in the nucleus in each of its cells. This is usually in the…
Q: Distinguish between gene expression and gene regulation
A: Genes are defined as an elementary unit of inheritance, which can be assigned to a particular trait.…
Q: Create an analogy for the process of gene expression. In your analogy, be sure to explain the…
A: The genes are located on the chromosomes and it is the part of DNA sequence that ultimately produce…
Q: What does "feed back" mean gene regulation in gene expression ?
A: A particular organism's genome has thousands of genes, however not all of these genes must be active…
Q: Which of the following statements about the differential expression of human genes is correct?
A: There are three postulates of differential gene expression, two of which states that - 1. Every…
Q: What term describes the expression of gene products that are needed in consistent amounts all of the…
A: Gene expression is the process through which information from a gene is used to make a functioning…
Q: Describe the regulation of gene expression.
A: The gene expression the process in which the genetic information present in the DNA (gene) is copied…
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: Would the relative position where a transcription factor or an activator/repressor binds DNA be the…
A: Transcription occurs inside the nucleus and it require the presence of enzyme rna polymerase and in…
Q: Explain in Details,What do you know about Gene Expression.
A: Genes are segments of DNA. Genes are considered as basic physical and functional units of heredity.…
Q: Why is it important to regulate gene expression?
A: Gene can be defined as the segment of the DNA. It consists of the information of the individual's…
Q: Describe the process of transcription. Also, what is the relationship between a “gene” and…
A: Gene:- A gene is a part of DNA that codes for a particular protein. DNA is the information database…
Q: Name six different levels at which gene expression might be controlled.
A: The encoding of proteins by a gene that regulates cellular functions is known as gene expression.…
Q: What is the significance of transcription factors
A: Transcription factor has the prime principle role in cell differentiation by their ability to…
Q: Explain how a transcription factor ultimately determines whether or not a protein will be present in…
A: There are different molecules in the cell. But DNA is the only molecule capable of transferring…
Q: Describe the term gene.
A: The hereditary components are what make up the gene. Alleles, which are tiny genetic building blocks…
Q: What act in cis to regulate gene expression
A: The information that is present in the deoxyribonucleic acid (DNA) is transferred into the messenger…
Q: Name one step of gene expression and describe one way that step differs between prokaryotes and…
A: The step of the gene expression is transcription. During this process the DNA sequence of a gene is…
Q: List the steps in gene expression that are potentiallysubject to regulation.
A: Gene regulation is the process of controlling which genes in a cell's DNA are expressed and thereby…
Q: DNA and RNA are information molecules with different roles in gene expression. List three…
A: DNA means deoxyribo nucleic acid.It is a molecule made up of two polynucleotide chains that are…
Q: Discuss the relationship between genes and phenotype in terms of gene expression and the symptoms…
A: Units of inheritance are called genes. Genes are the DNA regions that encode proteins. Each gene…
Q: The structural portion of genes contains two distinct types of regions—exons and introns. Which…
A: Introns and exons are nucleotide sequences inside a gene. They both are distinct regions of the…
Q: compare regulating gene expression at the level of transcription to regulating gene expression at…
A: Gene expression is the process through which the genetic codes of a gene, the nucleotide sequence,…
Q: Explain the Gene Expression: From DNA to Phenotype ?
A: Gene expression is the process through which information from a gene is utilized in the synthesis of…
Q: Explain about Regulation of gene expression.
A: Introduction There are two key components which help in gene regulation Activators Repressors The…
Q: How gene expression is controlled?
A: Gene expression is the process of turning on a gene to produce RNA or protein. In simple terms, it…
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- Post-translational control refers to: a. regulation of gene expression after transcription b. regulation of gene expression after translation c. control of epigenetic activation d. period between transcription and translationWhich of the following statament is NOT TRUE about gene expression?a. The expression of genes that code for proteins includes two stages: replication and translationb. Translation is the synthesis of a polypeptide using the information in the mRNA.c. During gene expression, the information encoded in genes is used to make specific polypeptide chains or RNA molecules.d. Gene expression is the process by which DNA directs the synthesis of proteinsWhich of the following is NOT a mechanism of control of gene expression Group of answer choices a. Co-dominance b. mRNA transport c. DNA Methylation d. Control of translation e. Control of transcription
- Choose the option that goes with the blank. The parentheses after the blank are the choices. In gene expression, a gene is _________ (translated, transcribed) into mRNA, which is then _________ (translated, transcribed) into a protein.Which of the following statements about gene expression is false?a) More than one RNA polymerase can be transcribing a specific gene at a given time.b) More than one ribosome can be translating a specific transcript at a given time.c) Translation begins at a site called a promoter.d) Transcription stops at a site called a terminator.e) Some amino acids are coded for by more than one codon.Translational control of gene expression occurs within thea. nucleus.b. cytoplasm.c. nucleolus.d. mitochondria.
- Which statement/s is/are TRUE about transcription?A. During transcription, DNA polymerase binds to RNA and separates the DNA strands.B. RNA polymerase uses one strand of DNA as a template to assemble nucleotides into a strand of RNA.C. RNA polymerase binds only to DNA promoters, which have specific base sequences.D. Promoters are signals in RNA that indicate to RNA polymerase where to begin transcription.E. Transcription occurs in the 3’ to 5’ direction with respect to the growing mRNA strand.Number the following steps of protein synthesis in the order in which they occur, starting with 1 and ending with 9.a. _____ The stop codon is reached, and the polypeptide is released.b. _____ The small ribosomal subunit finds the start codon, and the large ribosomal subunit joins.c. _____ The end of the gene is reached, and the pre-mRNA is released and then edited.d. _____ The transcription factor binds the promoter.e. _____ The protein is folded and modified to become functional.f. _____ RNA polymerase builds the mRNA transcript.g. _____ mRNA and initiator tRNA bind the small ribosomal subunit.h. _____ New tRNA molecules are brought into the A site successively, and the peptide chain of the tRNA in the P site is joined to the amino acid of the tRNA in the A site.i. _____ mRNA exits the nucleus via a nuclear pore.Number the following steps of protein synthesis in order in which they occur, starting with 1 and ending with 9. a. ____ the stop codon is reached, and the polypeptide is released b.____ the small ribosomal subunit finds the start codon, and the large ribosomal subunit joins. c.____ the end of the gene is reached, and the pre-mRNA is released and then edited. d. ____ The transcription factor bonds the promoter. e. ____ the protein is folded and modified to become functional. f. ____ RNA polymerase builds the mRNA transcript. g. ____ mRNA and initiator tRNA bind the small ribosomal subunit. h. ____ new tRNAs are brought into the A site successively, and the peptide chain of the tRNA in the P site is joined to the amino acid of the tRNA in the A site. i. ____ mRNA exits the nucleus via a nuclear pore.
- Muscle cells differ from nerve cells mainly because they(A) express different genes.(B) contain different genes.(C) use different genetic codes.(D) have unique ribosomes.Gene expression does not vary by_______ . a. cell type c. stage of development b. extracellular conditions d. the genetic codea) Define the term gene expression b) State 4 difference between prokaryotes and eukaryotes gene expression c) state the importance of regulating gene expression