Which of the following are examples of RNA modification? a. Splicing b. Capping with 7-methylguanosine c. Adding a polyA tail d. All of the above

Q: The -35 and-10 consensus sequences upstream from the transcription start site are A) O located in…

A: Transcription is the process of formation of mRNA (messenger ribonucleic acid) from the DNA…

Q: A uracil-rich sequence occurs at the end of the RNA ina. ρ-dependent termination.b. ρ-independent…

A: Answer is b.)  rho-independent termination.

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

A: The start codon is a three-nucleotide long sequence in a gene that is responsible for the initiation…

Q: Transposase protein cana. bind to DNA.b. catalyze the excision of a transposable element froma donor…

A: Introduction: Transposons are a region or DNA segment that possess the ability to replicate on its…

Q: Two examples utilize RNA reverse transcription in their biology, what are they?

A: Reverse transcription is the exact opposite of the transcription. It involves the synthesis of the…

Q: The stage of transcription where mRNA is synthesized is called (a) initiation    (b) elongation…

A: TRANSCRIPTION  The Formation of RNA from the DNA is termed as Transcription. The RNA formed after…

Q: Bacterial RNA that can act both as an mRNA and a tRNA Group of answer choices a.Micro RNA b.Guide…

A: The gene that a eukaryotic cell turns "on" to a great extent decide its personality and properties.…

Q: In gene silencing, the “dicer” enzymea. assembles siRNAs into a RISC complex.b. unwinds the RISC…

A: Introduction: Gene silencing is a mechanism to regulate the expression of genes. The gene silencing…

Q: During elongation (in transcription), RNA polymerase has three prominent channels, or grooves. These…

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

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: Which of the following are involved in posttranscriptional control? a. control of RNA splicing b.…

A: At the RNA level, the gene expression is controlled that is better known as the Post-transcriptional…

Q: The most common type of gene control is at the level of ________________.   A transcription   B…

A: The genes are the functional parts of the DNA that are responsible for the production of a specific…

Q: Which of the following is not true of cDNA produced usinghuman brain tissue as the starting…

A: Introduction  Central Dogma: it is the key mechanism by which DNA can be transcribed into mRNA by…

Q: The portion of the mRNA that is removed during splicing is (a) an inverted repeat (b) the promoter…

A: The protein synthesis is a process which involves two steps transcription and translation .…

Q: When using gene therapy to treat an hereditary disease, the idea is to: A. Introduce the correct…

A: Genes are the functional segment of DNA which encode for proteins.

Q: function of a restriction endonuclease?

A: Recombinant DNA technology mainly aids in identification or investigation of DNA, recombination and…

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: Which of the following types of posttranscriptional modification is for mRNA only? a.splicing…

A: Basically, RNA are of following 3 types mRNA - transcribed by RNA pol ll rRNA- transcribed by RNA…

Q: The same DNA sequence may code for more than one polypeptide. Which one of the following is not used…

A: The pre-mRNA undergoes various rounds of processing so that it is ready for translation into a…

Q: Which of the following is NOT a component of the 30S initiation complex? A. EF-Tu and EF-Ts B.…

A: Translation Translation involves the transfer of information in mrna molecules into the aminoacidsl…

Q: The primary function of RF1 during translation is to:   a. recognize a stop codon in the 70S A…

A: The translation is the process of translating genetic information in the form of proteins. It…

Q: Which of the following describes the effect of a frameshift mutations? *   A. all mRNA codons change…

A: Cental dogma is the process via which DNA is transcribed into mRNA then the mRNA is translated to…

Q: What is one function of the 5' cap in eukaryotic mRNA? Select one: a. It is involved in translation…

A: Transcription is the process in which the RNA is synthesised from the DNA that is present in the…

Q: Which of the following statements best describes the promoter of a protein-coding gene?   A. The…

A: E- The promoter is a nontranscribed region of a gene

Q: Which of the following is not true of cDNA produced using human brain tissue as the starting…

A: The cDNA stands for complimentary deoxyribonucleic acid. DNA is the hereditary unit of an organism.…

Q: I. List the sequences of RNA that would be transcribed from the following DNA template sequences. а.…

A: Transcription is the initial stage in gene expression, when genetic information is utilised to build…

Q: During translation, ____________ is the step in which new t-RNA is attracted to the ribosome (a)…

A: Translation is the process in which proteins are synthesized by ribosomes. Translation occurs after…

Q: which of the following is true regarding UP elements? A. Occur between -40 and -60 of an E. coli…

A: RNA polymerase is an enzyme which runs in 5' to 3' direction. It synthesize RNA by utilising the…

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: Explain how the formation of one stem–loop in the RNA canblock the formation of another.

A: Bacteria are genetically regulated by RNA, they use a ribonucleic acid sequence encoded within mRNA…

Q: Missense mutations   a create premature stop codons   b cause no change in a gene product   c…

A: A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is…

Q: Explain how ncRNA uses complementary base pairing with RNA to affect gene expression.

A: Gene expression is defined as the process by which the information stored or contained in the DNA is…

Q: . differential lengths of poly-A tails affect mRNA stability a. pre-transcriptional control b.…

A: In the cytoplasm, the poly(A) tail interacts with the 5′ end of mRNA via eIF-4G, which binds both…

Q: What is an example of a post translational modification?  a. Poly (a) tail b. 5' capping  c.…

A: Following protein production, covalent and typically enzymatic modifications to proteins are…

Q: During the initiation stage of translation in bacteria, which of the following events occur(s)? a.…

A: The mRNA (messenger ribonucleic acid) contains the genetic information for the protein synthesis. A…

Q: The initiation factors a. help assembling both ribosomal subunits with mRNA and initiator tRNA b.…

A: initiation factors bind to the repressors to regulate the process of translation  there are three…

Q: Transcription

A: RNA polymerase synthesizes an RNA transcript complementary to the DNA template strand in the 5' to…

Q: Addition or deletion of bases causes which kind of mutation?

A: Mutation can results in the alteration of nucleotide sequence of DNA that leads to cause DNA damage.…

Q: If a splice site were mutated so that splicing did not take place, what would be the effect on the…

A: Mutation in genetic sequence of RNA is due to deletion, insertion, or any change in the nucleotides,…

Q: Which of the following is required for RNA splicing to occur? A a free 5 hydroxyl created by…

A: In vertebrates, there are three signals for direct splicing: - 5/ splice site hydroxylation…

Q: What is a mechanism that allows the same protein (with the same amino acid sequence) to have…

A: Gene expression is a process in which information that is present in a gene is decoded so as to…

Q: Describe three (3) ways in which the primary transcript is modified as it is converted to mRNA.

A: When an RNA transcript is first made in a Eukaryotic cell , it is considered as pre - mRNA and it…

Q: The release factors RF1 and RF2 are required for

A:

Q: . Consider the genetic code for the amino acid phenylalanine (abbreviations: Phe, F) and single base…

A: A codon is the triplet sequence of DNA or RNA nucleotides which corresponds either to specific amino…

Q: Eukaryotic mRNA is capped at the 5' end by:

A: Eukaryotic messenger RNA after synthesis in the nucleus move to the cytoplasm for translating…

Q: n prokaryotes, the sigma factor recognizes base sequences in the which facilitates RNA polymerase…

A: Sigma factors play a key role in the regulation of gene expression in response to changing…

Q: What binds to the -10 consensus sequence found in most bacterial promoters? a. The holoenzyme (core…

A: In the process of Transcription, the mRNA will be formed from the DNA strand by using the RNA…

Q: Which of the following methods is used to detect a specific RNAwithin a mixture of many different…

A: Blotting is a hybridization technique, which helps in identifying different biomolecules such as…

Q: Which of the following is involved in pre-transcriptional gene regulation? a.) alternative splicing…

A: Transcription is a process of converting the genetic information in the DNA to RNA in the nucleus of…

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.