Question 5. What is the effect on a target mRNA when it is silenced by a miRNA that has a complete match and can hybridize with the target mRNA sequence? A.The mRNA is degraded. B.The mRNA is partially degraded by the proteosome. C.The ribosome stalls and the mRNA is not translated. D.mRNA transcription is paused. E.The mRNA is degraded by the proteosome.

Q: ______is a function of the large ribosomal subunit A.endonucleasE B.tRNA transferase C.…

A: Genes are hereditary unita which helps in transfer of genetic information. Genetic information is…

Q: Question:- Which statement below about gene expression is TRUE? A. Transcription initiation begins…

A: A gene is a part of DNA that codes for a particular protein. Each Jean carries a particular set of…

Q: Which statement/s is/are TRUE about transcription? A. During transcription, DNA polymerase binds to…

A: Transcription is the process that involved production of RNA from the DNA. this process occurs will…

Q: Which of the following occurs during the process of RNA splicing?    Question 12 options:   A.…

A: RNA splicing is a form of RNA processing in which a newly made precursor messenger RNA (mRNA) is…

Q: Examine the following theoretical operon (gen) in E. coli which contains structural genes (genC,…

A: Question 4: No, a null mutation in the regulator gene would not be considered a gain-of-function…

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: One of the major learning outcomes of this course is understanding the differences between…

A: Need to find which one differentiates Eukaryotes from prokaryotes.

Q: Certain introns can self-excise from RNA.   a. false   b. true

A: Rare introns that create a ribozyme self-splice, carrying out the tasks of the spliceosome by RNA…

Q: Please answer problem #3

A: Ligand is a substance that forms a complex with a biomolecule to serve a biological function. In…

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: 1.1 What is the best description of a Ribosome? a. An enzyme that uses ribose to synthesize amino…

A: Ribosomes: All cells contain ribosomes, which are macromolecular machines that carry out biological…

Q: functional insulin required the association of two polypeptides known as the A and B chains…

A: Pre transcription control involves in DNA methylation.  Transcriptional control involves in…

Q: Scenario 2: Examine the following DNA strand. The coding strand is on top and the template strand…

A: DNA is a template for making proteins that are essential for cellular functions. The process of…

Q: A. RNA polymerase binds to a gene’s promoter.   B. RNA polymerase moves over the gene and unzips the…

A: transcription is the process in which m RNA is formed as directed by the template strand of DNA.

Q: Which of the following may produce more than one functional protein from an mRNA transcript?a.…

A: Chromosome condensation is the re-organization of the long thin chromatin strands into compact…

Q: RNA splicing removes ________ from the RNA transcript.   a. exons   b. axons   c. introns

A: Splicing makes genes more "modular," allowing for the emergence of new exon combinations.…

Q: Suppose that you have cancer cell line X was treated with drug Y to increase the expression levels…

A: The genes that suppress tumors are ordinary genes, which delay cell division, fix DNA errors or tell…

Q: Which of the following is not a function of the 5’ cap and 3’ poly-A tail of a mature eukaryotic…

A: Introduction: RNA polymerase is an enzyme that copies DNA. The RNA polymerase binds to the promoter…

Q: Which of the following are steps of transcription? Select all that apply. a.RNA polymerase…

A: The function of a gene can be studied through expression in a particular cell and its interactions…

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

A: Answer - Option B - Transcriptional regulation

Q: What is the genetic code? a. The relationship between a three-base codon sequence and an amino acid…

A: Translation is the process of conversion of an mRNA (messenger RNA) molecule into a functional…

Q: Each of the following statements about protein synthesis is false.Correct each to make a true…

A: Nucleotides are the monomers of nucleic acids, DNA and RNA. A nucleotide is composed of a…

Q: Some point mutations lead to an mRNA that produces a shorterpolypeptide. This type of mutation is…

A: Mutations could be defined as the sudden inheritable changes that occur in the genome of a given…

Q: Consider the following DNA sequence:CATGTGTAGTCTAAAa. Write the sequence of the DNA strand that…

A: Introduction: DNA is a hereditary material that transfers from one generation to another. It is a…

Q: ermination of translation occurs when the ribosome reaches one of _____ potential stop codons. At…

A: Introduction: The process of translation involves messenger RNA (mRNA) getting translated into…

Q: Question 3. Why must RNA splicing be absolutely precise?

A: RNA Splicing refers to the removal or cutting of non-coding regions of RNA (introns) from mRNA and…

Q: Suppose the DNA sequence of a gene with 5 exons contains a mutation at the 5’ end of intron 2.…

A: The protein translation is the process of the formation of proteins from the mRNA formed from the…

Q: The RNA-induced silencing complex (RISC) I. binds to and unwinds ds siRNA/MIRNA to produce ss…

A:

Q: a. Write the sequence of the MRNA synthesized from the upper strand. b. Indicate the 5'and 3'ends of…

A: Answer : a. Sequence of mRNA synthesized from the upper stand - 5' AUGCCAUUUUGA 3' b. 5' and 3' ends…

Q: You are comparing the proteins expressed in two different human cells: a liver cell and a muscle…

A: Proteins are cellular macromolecules made up of amino acid polymers (polypeptides). The sequence of…

Q: If a eukaryotic mRNA has failed to have a cap attached to its 5' end, what would the negative…

A: The process of transfer of information encoded in the DNA to the RNA is called transcription. The…

Q: In humans, miRNAs are thought to regulate the expression of at least one-third of all protein-…

A: RNA (Ribonucleic acid) is a single-stranded nucleic acid that is present in all living cells. It is…

Q: A signaling pathway causes a transcription factor binding to a particular promoter. What effect does…

A: Answer- Signaling transduction is the process by which any specific external physical or chemical…

Q: Match the items listed below with "eukaryotic" if they can be found in eukaryotic cells only,…

A: Polyadenylation signal sequence - Eukaryotic Shine Dalgarno sequence - Prokaryotic mRNA - Both tRNA…

Q: Put the events of translation in order. A. Ribosome reads the start codon and initites…

A: Translation is the process of peptide synthesis in any living organism. It involves the ribosome…

Q: The RNA-induced silencing comp (RISC) I. binds to and unwinds ds siRNA/miRNA to produce ss…

A: A multiprotein complex called RISC contains one string of a small interfering RNA (siRNA) or micro…

Q: The formation of peptide bonds between amino acids occurs _____. a. during transcription     b.…

A: Translation involves “decoding” a messenger RNA (mRNA) and using its information to build a…

Q: Which of the following steps in protein synthesis does not require a direct supply of energy? a.…

A: Protein synthesis inside the cytoplasm is known as translation. Translation process inside the cell…

Q: A scientist mutates eIF-2 to eliminate its GTP hydrolysis capability. How would this mutated form of…

A: Selection of the AUG start codon for translation in eukaryotes is governed by codon-anticodon…

Q: The addition of the poly-A tail adds more than 200 units of adenine to the strand of mRNA, yet no…

A: Transcription is a process through which the template strand of DNA gets transcribed into mRNA. In…

Q: To treat your infection, your doctor prescribes an antibiotic.  This antibiotic inhibits the…

A: Several medications that suppress protein synthesis in bacteria are hazardous to eukaryotic host…

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.