If eukaryotes have monocistronic genes, why is the number of known proteins more than the number of known genes?   A. Post-translational modification B. Alternative splicing C. Base substitution D. Post-transcriptional modification

Q: What processing step enhances the stability of pretRNAs and pre-rRNAs? a. methylation b. nucleotide…

A: The precursors of transfer Ribonucleic acid (tRNA) and ribosomal Ribonucleic acid (rRNA) are the…

Q: the sequence of a DNA template is 17. What is the sequence of the mRNA that will result from the…

A: Transcription is the process by which RNA is synthesized with the help of DNA. Abrupt changes in the…

Q: Question 1 Which of the following, when mutated, will prevent a messenger RNA from being…

A: Transcription is the process of converting genetic information stored in a DNA molecule into an mRNA…

Q: Which statement about transposons is INCORRECT?   a.A transposon is a small fragment of DNA that…

A: Genes make proteins, which are important for our body to work properly. That's why it's really…

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: Write a brief essay that discusses why you think gene-regulatory systems evolved in bacteria, and…

A: Bacteria are the prokaryotic organisms with the unicellular body.

Q: which event contradicts the central dogma of molecular biology?

A: The central dogma of molecular biology states that DNA undergoes a process called Transcription to…

Q: highly-conserved regions of human DNA

A: DNA: It is a molecule which contains the instructions where an organism needs to develop, live and…

Q: Select the most complete list of correct structures involved in the process of transcription…

A: Transcription is a process involved in the expression of a gene that takes place in the nucleus of a…

Q: What is the difference between orthologs and paralogs? a. Orthologs are homologous sequences;…

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

Q: Select the illustration with the correct placement of the promoters and terminators for the…

A: Transcription: The process of coding DNA into RNA. Steps of transcription: Initiation elongation…

Q: Which gene regulation event is ONLY present in prokaryotes?  a. transcription level of regulation…

A:

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: 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: Which RNA polymerase in eukaryotes is responsible for the transcription of genes that encode…

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

Q: A given section of DNA with the sequence TACACTGGTCAT is transcribed. What is the corresponding…

A: Since we know in RNA Thymine is replaced by Uracil. So Adenine is binded to Uracil. This forms the…

Q: With regard to transcriptional termination in eukaryotes, which model suggests that RNA polymerase…

A: After RNA polymerase II has transcribed the polyadenylation, which is the process of cleaving the 3’…

Q: What is the central component of a transcription initiation complex?   a.   DNA polymerase…

A: Transcription is the process by which RNA is produced from the DNA template. This process is occurs…

Q: What is the correct tRNA anti-codon sequence for the AUG mRNA sequences? a. UGA b. UAC c. CAU d.…

A: Transfer RNA (tRNA) is a small RNA molecule that plays a key role in protein synthesis.

Q: What is a proteome? a. The collection of all genes encoding proteins b. The collection of all…

A: What is a proteome:

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: 1. What are the amino acids translated from the resulting mRNA?

A: The process of transcription occurs only in one strand of the double-stranded DNA. This strand is…

Q: Which type of mutation would expect would have no effect on a protein coding gene in eukaryotes?…

A: “Silent” mutation: doesn't change an amino acid, however in some cases will still have a…

Q: Chromatin remodeling is affected by two processes, DNA methylation and a. base substitution b.…

A: Chromatin remodeling is the dynamic modification of chromatin architecture to allow access of…

Q: Why can the transcriptome not be used to predict the proteome with complete accuracy? a. It cannot…

A: The entire genetic material present in a cell is known as the organism's genome. The genome contains…

Q: An anticodon would be found on which of the following types of RNA? a. snRNA (small nuclear RNA)…

A: Ribonucleic acid (RNA) is a vital biological macromolecule that persists in all biological cells…

Q: Molecules in higher eukaryotes that are directly involved in gene silencing include all of the…

A: A gene is a stretch of nucleotides present in the DNA. It codes for the synthesis of an RNA or…

Q: What is the name of the process that adds a modified guanosine nucleotide to the 5’ phosphates of…

A: In eukaryotic cells,pre-mRNAs go through three main steps: Capping at 5' end Addition of poly A…

Q: A prokaryotic gene was transcribed then trans antibiotics X was added, and the products of t steps…

A: Antibiotic are the key substances which act on the major pathways of replication, transcription or…

Q: How is translation different in prokaryotes and eukaryotes? a. In prokaryotes, because they do not…

A: Translation is a process which takes place after transcription, in which the genetic information…

Q: Define the following terms: a. wobble hypothesis b. aminoacyl-tRNA synthetase c. tRNA d. AUG…

A: Wobble hypothesis was proposed by scientist Crick mainly to explain the observed degeneracy in the…

Q: Which of the following shows sequences that never change within a domain? Select one: a.Ribosomal…

A: There are few termed sequences that never changes within a domain

Q: Which of the following mutations is most likely to cause a single amino acid difference during the…

A: The translation is the process of translating the sequence of a messenger RNA (mRNA) molecule to a…

Q: For each statement below indicate whether it is true or false: A. Strand discrimination during the…

A: A In eukaryotes, nicks (single-stranded breaks) that are unique to recently manufactured DNA are…

Q: What will most likely happen when the -35 element and pribnow box are mutated? a. The sigma factor…

A: -35 element and pribnow box both act as the essential part of the promoter sequence for DNA…

Q: Give two examples of places you could have mutations in the DNA sequence of a eukaryotic gene that…

A: The change in the heritable characteristics of the species across many generations is called…

Q: on this activity, what type of RNA is this molecule? A. Transfer RNA B. Micro RNA C. Circular RNA D.…

A: Introduction RNA (Ribose nucleic acid) contains the codons (3 consecutive nitrogenous bases) which…

Q: What are epigenetic modifications? a. the addition of reversible changes to histone proteins and DNA…

A: Epigenetic mutation can be defined as abnormal methylation level that can result in aberrant gene…

Q: A codon is supposed to be 5'-UGG-3', but a mutation causes it be 5'-UAG-3'. Which one of the…

A: Mutations are sudden changes in the genetic material. Mutations are heritable. Mutations are random.…

Q: Which of the following amino acids is carried by the tRNA that initiates translation in eukaryotes?

A: If tRNA carries Methionine Amino acid, it initiates translation in Eukaryotes.

Q: Which of the following order of events correctly depicts the Central Dogma as it would occur in an…

A: The Central Dogma of molecular biology, first proposed by Francis Crick in 1958, represents the flow…

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: Sketch a figure to show how reverse transcription is catalyzed by the enzyme reverse transcriptase.…

A: Reverse transcription is a process of synthesis of RNA (short for ribonucleic acid) from DNA (short…

Q: A scientist is interested in producing flowers with a darker red color. To do this, the scientist…

A: Si RNA is a small interfering or silencing RNA, which is a non-coding, double stranded RNA molecule.…

Q: You are studying a bacterial plasmid that contains 3 operons and 9 genes. How many transcriptional…

A: In bacteria, similar and related genes are often found in a cluster on the chromosome, where they…

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.