Which of the following DNA regions is NOT involved on gene expression regulation in Eukaryotes?. ( not enhancer or promotor-proximal) A. Promoter-proximal B. Promoter C. Enhancer D. Operator

Q: You are curious to identify the region of the gene X sequence that serves as an enhancer for gene…

A: Nascent RNA (ribonucleic acid) sequencing analysis is a tool for enhancer identification. Some…

Q: Match the key complex or product to its related process of regulating gene expresSion. a.…

A: Operon is a functional unit of DNA. It contains a cluster of genes transcribed in mRNA and…

Q: In E. coli, induction in the lac operon and repression in the trp operon are both examples of a.…

A: Transcription, translation, post-transcription and post-translation. The process in which the gene…

Q: If a mutation deletes the promoter in a eukrayotic gene, which of the following most accurately…

A: mRNA means messenger RNA. mRNA forms from the template DNA strand. The template DNA strand is used…

Q: An enhancer:  A. is a consensus sequence in DNA located where RNA polymerase first binds. B. may…

A: An enhancer refers to a sequence in the region of DNA that bind to certain transcription factors and…

Q: A geneticist induces a mutation in eukaryote cells. The mutation results in an inability to form the…

A: Mutation results in alteration of a nucleotide sequence of DNA which caused due to the mistake in…

Q: Eukaryotic transcription  A. is independent of the presence of upstream consensus sequences. B.…

A: Eukaryotic transcription is the intricate process used by the eukaryotic cells to duplicate the…

Q: Changes in a cell that affect micro RNAs lead to cancer because miRNAs... a. help a cell to…

A: Cancer can occur when- apoptosis( programmed cell death) is distributed, inhibition of growth…

Q: Transcriptional activation of eukaryotic genes involves which of the following events? a. Changes in…

A: Nucleosome is the packaging unit in eukaryotes. It is a fundamental subunit of chromatin.…

Q: With regard to transcriptional termination in eukaryotes, which model(s) suggest(s) that RNA…

A: Forming of Rna from Dna is known as transcription and removal of RNA from the polymerase is known as…

Q: Which of the following is NOT found in a prokaryotic genome?   A. tRNA genes   B. Operons   C.…

A: There are 2 types of living cells present on earth, prokaryotic cells and eukaryotic cells.…

Q: Which of the following statements uses the term homologous correctly?A. The two X chromosomes in…

A: Homologous genes refer to the genes that are inherited in two species by a common ancestor. These…

Q: Which of the following is a sequence of DNA where transcription is initiated?   a. Kozak sequence.…

A: Transcription is a heterocatalytic action of an DNA by means of which RNA is synthesized from…

Q: Which of the following statements correctly describes promoters in E. coli a.A promoter may be…

A: A promoter is a short region of DNA upstream of the start site of a gene at which the RNA Polymerase…

Q: Give two DIFFERENT examples of how the following can occur: a. A point mutation in an exon that is…

A: Silent mutation - Silent mutations are mutations in DNA that do not have an observable effect on the…

Q: What is the function of the sigma subunit of prokaryotic RNA polymerase? a. It directs the…

A: Introduction:- Transcription is defined as the process of RNA synthesis. It uses one strand of DNA…

Q: Exposing Escherichia coli (e.coli) to ionizing radiation results in DNA damage. Say you perform an…

A: Gene expression is the process by which information from a gene is used in the synthesis of a…

Q: Positive regulators are called: A. Repressors  B. Activators C. Enhancers D. None of the above

A: Transcription is a process by which the RNA is synthesized from the DNA sequence. RNA polymerase is…

Q: Genes of related function frequently cluster into: please explain the answer  a.transcripts…

A: Gene is the functional part of the DNA that undergoes transcription and produce RNA. They have a…

Q: Which of the following is true?   a.     Enhancers are proteins that bind to activator DNA…

A: An enhancer is a brief piece of DNA (50–1500 bp) in genetics that can bind to proteins (activators)…

Q: Gene expression regulation by methylation of the cytosines in a promoter would be considered

A: Answer - Option B - Transcriptional regulation

Q: In the table below the product of gene R binds to the promoter of gene A. What happens in (b)? a.…

A: Positive regulators are structural components that allow RNA polymerase to attach to the promoter…

Q: The gad operon is controlled by a number of transcription factors that regulate a promoter of…

A: Bacteria re found in prokaryotes. They are more primitive as compared to eukaryotes.

Q: Which of these BEST DESCRIBE tryptophan in the Trp Operon? A. Acts as a corepressor B. Acts as a…

A: An operon is a unit of genetic material that functions in a coordinated manner through the use of an…

Q: Specific transcription factors in eukaryotes interact with enhancers, which may be a long distance…

A: Transcription is the process by which mRNA is transcribed from double-stranded DNA. The core enzyme…

Q: What is the role of a substrate that controls a repressible operon?   a. increase the production…

A: Operon is the segment of DNA. It consists of structural genes, regulatory, promoter and operator…

Q: A scientist compares the promoter regions of two genes. Gene A’s core promoter plus proximal…

A: Promoters are nucleotide sequences location upstream of a gene. They serve as sites where proteins…

Q: Assembly of transcription initiation complexes is mainly controlled by

A: Assembly of transcription initiation complex is a process of bringing together all the components…

Q: Which of the following does not accurately describe eukaryotic transcriptional factors? a. Changes…

A: Introduction Transcription factors are the proteins that specifically are involved in the…

Q: Working of DNA fingerprinting?

A: Our DNA contains variable number of tandem repeats (VNTRs). The restriction endonuclease recognise…

Q: Which of the following activities DOES NOT happen during the initiation stage of transcription? A.…

A: Introduction :- The poly-A tail is a stretch of adenine nucleotides that is added to the 3' end of a…

Q: Eukaryotic transcription has the following regulatory upstream element (region) in addition to…

A: In Eukaryotic transcription, the cells undergo several steps for copying genetic information present…

Q: Which of the following is true regarding General transcription factors? a. Act at every gene for a…

A: Transcription factors are proteins which binds to DNA, resulting in regulation of gene expression…

Q: In the trp operon, tryptophan is best characterized as being a: A. repressor B. inducer C.…

A: Operon is clustered of Genes where a single mRNA consists of more than one functional gene.It is…

Q: In a bacterial operon, the active repressor bind to the   A. promoter.   B. terminator.   C.…

A: The operon concept can be defined as a DNA containing a set of genes that are transcribed basically…

Q: Which of these is used in the transcription of all genes? Choose all correct answers.         A.…

A: Transcription is the process in which RNA strand is synthesized with the help of template strand of…

Q: Eukaryotic cells have multiple complex mechanisms for the regulation of gene expression, but a…

A: Answer :- a) Operons Explanation - Eukaryotic genes aren't organized into operons, therefore every…

Q: Which of the following regions of the DNA is transcribed by RNA polymerase AND is “understood” by…

A: Transcription  Transcription is the process where DNA is transcribed into RNA with the help of…

Q: Which of the following is generally true about eukaryotic gene regulatory regions? a. All regulatory…

A: Genes are the segments of DNA that code for polypeptide chains. The expression of the genes in…

Q: Which of the following gene regulation mechanisms are found ONLY in prokaryotes?   a. coordinate…

A: DNA modifications can happen in both prokaryotes and eukaryotes, Transcriptional and Translational…

Q: The TATA box binding protein binds to the TATA box. What is the DNA sequence of this region of the…

A: TATA box is a DNA sequence.

Q: The following type of mutation in a proto-oncogene may cause cancer in human: A. Translocation of…

A: Cancer is a condition in which some cells in the body develop uncontrollably and spread to other…

Q: In the yeast GAL system, the UAS is a(n) ___________________ and GAL4, the protein that binds to the…

A: GAL4-UAS This system is a biochemical method that is involved in evaluating the expression of genes…

Q: Which of the following is true about operons?   A. Contains a cluster of genes transcribed as…

A: An operon is a functional unit of transcription and genetic regulation, which occur primarily in…

Q: onsidering the 7 levels of gene regulation, which of the following mechanisms acts at first level?…

A: Gene expression is a tedious process involving several steps such as replication, transcription and…

Q: Promoters are DNA sequences a. near a transcription start site b. bound to a repressor protein c.…

A: it is related to molecular biology.

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.