What happens during the TERMINATION step of transcription? A. base pairs are added to the mRNA transcript B. RNA polymerase starts creating the mRNA transcript C. RNA polymerase stops adding bases to the mRNA transcript, causing the mRNA to separate from the DNA

Q: Use the pre-mRNA sequence shown below to answer the following questions. MRNA:…

A: Splice sites are recognized by GU (5' splice site) and AG (3' splice site), which signals the…

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: Use the diagram of a gene below to answer the question. The site of transcription initiation of the…

A: A gene is a sequence of nucleotides in RNA or DNA that encodes for the synthesis of a gene product…

Q: Which of the following characteristics of gene expression is shared by eukaryotic and prokaryotic…

A: Ribosomes are attached to the nuclear membrane when producing secreted proteins. Transcription is…

Q: Briefly describe how transcription works and show that you understand the difference between…

A: Transcription is the process of formation of a sequence of RNA using DNA as a template and DNA…

Q: What will result from the binding of a transcription factor to an enhancer region? a. decreased…

A: Introduction: To initiate transcription in the eukaryotic cell, RNA polymerase should bind to the…

Q: Which is a feature of mRNA processing in eukaryotes? removal of exon sequences addition of a…

A: Processing of mRNA Until introns are removed and the mRNA is considered ready for translation,…

Q: Which type of gene controls functions like an "on-off" switch for gene transcription? A. DNA…

A: Option D is the correct answer

Q: A particular tRNA is mutated so that the amino acid attachment cannot bind with the aminoacyl-tRNA…

A: Correct answer is option... B. Translation stops and the protein is released

Q: Explain how transcription regulators in eukaryotic cells are able to act at a great distance from…

A: DNA is a nucleic acid present in the nucleus of the eukaryotic cells.

Q: Which statement BEST DESCRIBES the genetic code?   A. There can only be one codon for multiple amino…

A: 3 nucleotides ( triplet ) formed a single codon . Each codon code for specific amino acid . There…

Q: How are rare bases incorporated into tRNAs? a. Encoded by guide RNAs b. By chemical changes to one…

A: RNA contains four types of nucleotides adenine, guanine, cytosine, and uracil. In addition to these…

Q: If a tRNA has an anticodon with the sequence 5′-CAG-3′, which amino acid does it carry? a. Aspartic…

A: An anticodon is the nitrogen base triplet present in the transfer RNA molecule and the codon is the…

Q: How does the Trp operon work? A. Binding of Trp to a repressor protein allows the repressor to bind…

A: Trp operon is the cluster of genes that are responsible for synthesis pf operon

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: A student wants to observe how the environment of bacteria affects gene expression. How should the…

A: Option B i.e. exposing same species of bacteria to the different carbohydrate in each sample is the…

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

A:

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: Diagram a termination of transcription showing how inverted repeats can be involved in releasing the…

A: DNA and RNA are the genetic elements present in almost all cells. DNA encodes for proteins through…

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: Which statement is true about RNA polymerase (which is required for transcription)? A. RNA…

A: Transcription  It is the process through which the sequences in strand of DNA forms into the…

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: How many nucleotides are in 12 mRNA codons? a. 12 b. 24 c. 36 d. 48

A: The three-letter nature of codons means that the four nucleotides found in mRNA are A, U, G, and C.

Q: create a summary of the nucleotide pairs during the translation process

A: Answer: Introduction: Translation process occurs in ribosomes of cytosol or membrane of the…

Q: Given the sequence of the DNA template as GTCATG, what would be the sequence of the mRNA? a. CAGTAC…

A: Here are some of the points to consider the mRNA from DNA; 1. RNA Nucleotides: RNA differs from DNA…

Q: What are the three phases of creating pre-mRNA? a. Initiation, Elongation and Termination b.…

A: Pre-mRNA, also known as precursor messenger RNA, is the first RNA molecule transcribed from a DNA…

Q: What is the maximum number of amino acids that can be encoded by a gene with 45 bases plus a stop…

A: The triplet code is comprised of three bases encoding for one amino acid. Thus, 15 amino acids can…

Q: What transcripts will be most affected by low levels of α- amanitin? a. 18S and 28S rRNAs b.…

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

Q: When can a mutation on the DNA cause production of a longer translation product?  Give a specific…

A: Mutation is a process by which alternation of DNA sequence take place which unltimately results in…

Q: How many mRNA nucleotides does it take to code for a polypeptide that is 30 amino acids long?…

A: on the mRNA, we have codons that code for very specific amino acids. we have 61 codons that code for…

Q: A part of an mRNA molecule with the following sequence is being read by a ribosome: 5'- CCG-ACG…

A: The production of polypeptide chain (protein) from the mRNA is known as translation that occurs…

Q: Which type of RNA comprises over 80% of total cellular RNA? A. ribosomal RNA B. Messenger RNA C.…

A: Ribonucleic acid (RNA) is a DNA-like molecule. RNA, unlike DNA, is a single-stranded molecule. The…

Q: When can a mutation on the DNA cause shortening of the translation product?  Give a specific example…

A: Mutation is an alteration in the nucleotide sequence of a gene / DNA . It can result from DNA…

Q: Neutralizing their positive charges would have which effect on the histone proteins? a. They would…

A: Histones are the proteins molecules that are positively charged, found in eukaryotic cells. The…

Q: Which enzyme is responsible for the synthesis of pre-mRNA?   A. RNA polymerase I   B. RNA…

A: Correct option is  B.RNA polymerase II The nucleus uses the nucleotide sequence of DNA as a template…

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.