Only one of the two strands of DNA is transcribed because a. RNA polymerase binds to the terminator, stopping transcription on one strand of DNA. b. both strands are transcribed, but only one strand of DNA contains a reading frame. c. DNA consists of only one strand in the nucleus of the cell. d. RNA polymerase binds to the promoter, initiating transcription on only one strand of DNA. e. the start of transcription is random along the chromosome and does not always occur on a gene.

Q: The splicing process a. occurs in prokaryotes. b. joins introns together. c. can produce…

A: Ribonucleic acid (RNA) is a nucleic acid found in both the nucleus and cytoplasm. It can be genetic…

Q: Which of the following mutations could be appropriately describedas a position effect?A. A point…

A: The mutation is caused due to alteration occurred in the gene sequence due to either environmental…

Q: Sigma (σ) factor is needed during which stage(s) of transcription? a. Initiation c. Termination b.…

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

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: State true or false, giving a brief justification: a. An enhancer is a type of regulatory element.…

A: Gene regulation is the process of turning genes on and off. During early development, cells begin to…

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: A. RNA polymerase does not require a template. B. all RNA is synthesiud in the nucleolus. C.…

A: Transcription is a process, during which RNA strand is synthesized over the DNA.

Q: A gene is constitutively expressed when it is: a. always copied into RNA, and the RNA is always…

A: Gene expression is a fundamental process within living organisms, tightly regulated to orchestrate…

Q: Which of the following statements about gene regulation is false?   a. An operon contains DNA…

A: Introduction Gene expression is the process in which the genetic information present in the DNA…

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: HDAC's are important enzymes involved in the regulation of Gene expression. This is because a. They…

A: HAT stands for Histone acetylase. HDAC stands for Histone Deacetylase.

Q: Which of the following combinations will cause transcription to be activated? a. A repressor plus an…

A: The transcription is a process through which information in the DNA molecule is transcribed into…

Q: egulatory proteins in Prokaryotes shut off transcription by binding to a site immediately in front…

A: In the given question options are given in accordance to regulation of transcription in prokaryotic…

Q: Which of the following best represents the central dogma of geneexpression?a. During transcription,…

A: Deoxyribonucleic acid (DNA) is a double-stranded helical genetic material containing thousands of…

Q: Select one or more: O a. by the interaction of Rho and Rho binding sites in RNA. O b. by the…

A: Transcription is the process of making mRNA from DNA.it is always in the 5' to 3' direction.

Q: Which of the following is the best description of a transcription factor? A. A protein that brings…

A: Transcription is the process which leads to conversion of DNA to RNA. One distinguishing aspect of…

Q: Why is regulating transcription the main way that cells control gene expression?     A. Because…

A: Transcription is the process in which RNA is synthesized with the help of RNA polymerase enzyme. RNA…

Q: Which of the following base sequences is used during transcription? a. Promoter and terminator b.…

A: Transcription is a template of DNA strand that is used in the profitable synthesis of messenger RNA…

Q: The primary function of 5' & 3' end mRNA modification is: a. To ensure that phosphorylation of the…

A: The mRNA synthesized by transcription undergoes modifications before they bind with ribosomes for…

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: to that in humans. The molecule that is most similar in function to the bicoid and the molecule that…

A: Introduction Transcription is a process in central dogma where the DNA strand is transcribed into a…

Q: 1. The following regulatory mechanisms occur before eukaryotic transcription EXCEPT a. the…

A: Ans - b. the phosphorylation of eukaryotic initiation factors. Promoters: This is a DNA sequence…

Q: The three stages of transcription are a. initiation, ribosome binding, and termination. b.…

A: Transcription is the process where double stranded DNA transcribes to form single stranded RNA…

Q: Which of the following is true of CpG islands? a. They are methylated near promoters of actively…

A: Deoxyribonucleic acid is a molecule composed of two polynucleotide chains. It coils around each…

Q: Which of the following plays a major part in determining whether or not RNA polymerase will…

A: RNA polymerase is an enzyme that helps to convert a DNA sequence into an RNA sequence in the…

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: In prokaryotes, control of gene expression usually occurs at the a. splicing of pre-mRNA into…

A: Transcription Cellular process in which RNA is synthesized using DNA as a template known as…

Q: Define the following terms:a. cohesinb. transcription factoryc. P bodiesd. CTCFe. ENCODE

A: There are cellular pathways that help to transfer genetic information and encode it to the protein.…

Q: To which part of DNA do the eukaryotic transcription factors bind? O a. promoter regions O b.…

A: Transcription is the synthesis of RNA from DNA that is the process of copying the information of a…

Q: Is each of the following statements true or false? A. An enhancer is a type of regulatory element.…

A: Gene is a section of DNA with information to construct a protein. Gene is actually made from a…

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: mRNA is the type of RNA that gets translated. A. True  b. False    Transcription forms new…

A: DNA (deoxyribonucleic acid) is the hereditary unit of an organism. The DNA is passed on from one…

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: Most transcriptional activator proteins affect transcription by interacting with a. introns. b. the…

A: Most transcriptional activator proteins affect transcription by interacting with the basal…

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: During transcription in eukaryotes, the 5' cap and poly-A tail function to:   A. Protect mRNA from…

A: After transcription primary mRNA formed mature mRNA which has different part to help in protein…

Q: Which of the following statements about methylation and acetylation is correct? A. Genes that have…

A: Introduction Deacetylation is the removal of an acetyl group and occurs on a plethora of targets and…

Q: What is the direction of the growth of newly synthesized RNA chain during transcription?   options:…

A: The first step of gene expression is transcription. A protein subunit or a polypeptide making…

Q: Histone deacetylase (HDAC) enzymes   a.Promote initiation of translation. b.Complex with…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: The transcription factors would recognize and bind to nucleotides between the positions…

A:

Q: Which of the following DNA elements or proteins would you expect to find only in some cells in a…

A: Enhancers are defined as cis-acting DNA sequences that can increase the transcription of genes.…

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.

Q: n bacterial RNA polymerase, the sigma factor A. contains the catalytic activity of the polymerase…

A: RNA polymerase is a transcription enzyme that copies a DNA sequence into RNA. RNA polymerase…

Q: The abortive transcription occurs Select one: O a. during transcription elongation O b. when there…

A: Only the RNA polymerase holoenzyme can initiate transcription. The core enzyme has the ability to…

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.