How is pre-mRNA processing regulated? Give examples

Q: Are the following statements TRUE or FALSE?

A: a.It is a false statement. Post transcriptional RNA processing occurs in the nucleus of the cell and…

Q: What process in mRNA folding leads to sensitivity to pain due to an effect on the COMT gene?

A: COMT is catechol-o- methyltransferase protein presence required for pain sensitivity.

Q: What is polycistronic mRNA ?

A: Polycistronic mRNA is a characteristic feature of prokaryotes but they are also present in…

Q: Describe how eukaryotic mRNA is processed

A: The central dogma of molecular biology briefs that DNA has instructions to synthesise proteins which…

Q: What are some examples of post-translational protein processing?

A: The process by which mRNA is translated to the amino acid sequence is termed as translation. It…

Q: What are polycistronic mRNAs?

A: Transcription refers to the process of synthesizing the RNA from the template of DNA…

Q: Explain how precursor mRNA is modified to produce mRNA.

A: The central dogma of molecular biology briefs that DNA has instructions to synthesise proteins which…

Q: Different types of alternative splicing events ?

A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. The DNA is transcribed to…

Q: what is it called when an mRNA is edited and where does it happen?

A: Commonly it’s known that mRNA is produced during the process of transcription which will then go for…

Q: How can the gene expression be controlled by regulating translation initiation?

A: Translation is defined as the translation of the mRNA sequence into protein sequence.

Q: Describe the three major modifications that occur duringthe processing of an mRNA.

A: the three major modifications that occur during the processing of an mRNA are :

Q: Why do Introns in a pre-operational transcript differ in size and number?

A: Introns An intron is any nucleotide sequence within a gene that is removed by RNA splicing to…

Q: What is RNA editing, how can it increase the number of proteins that can be formed from a single…

A: RNA editing also participated in the variations of proteomics sequence. In many types of cancers…

Q: List several ways in which RNA is processed after transcription.

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

Q: Describe the processes of transcription, translation, and post-transcriptional processing.

A: Deoxyribonucleic acid is a polymer made up of two polynucleotide chains that coil around each other…

Q: Where does miRNA fit into gene expression?

A: Gene is the primary unit of heredity of all living beings. It undergoes some modification process…

Q: Define the pre-mRNA & mRNA spliceforms of Cassette exons ?

A: Cassette exon splicing is also known as exon skipping and is the most prevalent form of alternative…

Q: post-transcriptional modifications that occur in mRNA and tRNA.

A:

Q: How is mRNA edited?

A: RNA or ribonucleic acid is a polymer of ribonucleotides connected together via a phosphodiester…

Q: What is the function of a splicing factor? Explain how splicing factors can regulate the…

A: Splicing factor: It is the protein that helps in the removal of introns from newly formed mRNA. So…

Q: Define about cis-regulatory sequences on the mRNA ?

A: mRNA - It has the tripartite structure with a 5' untranslated region( UTR), and coding region…

Q: Explain how histone modifications affect transcription.

A: Histones are a family of basic proteins, which associate with deoxyribonucleic acid (DNA) in the…

Q: What is the evidence that some mRNAs are directed to accumulate in specific subcellular locations?

A: mRNA is te transcribed product of the DNA and has an important role in defining the genetic…

Q: How is RNA processing efficiently coupled with the transcription of a pre-mRNA?

A: Ribonucleic acid (RNA) is a molecule similar to DNA. Unlike DNA, RNA is single-stranded, whereas DNA…

Q: What are the three modifications made to pre-mRNA molecules before they become mature mRNAs that are…

A: The unmodified mRNA which is present in the nucleus is known as a pre-mRNA. In eukaryotic cells, the…

Q: Define the role of mRNA localization and translational control ?

A: mRNA Localization (is a multi-step process). The pre-mRNA is bound by RNA binding proteins (blue…

Q: Define the pre-mRNA & mRNA spliceforms of Mutuallyexclusive exons ?

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

Q: How many different polypeptides can be producedthrough alternative splicing of the same pre-mRNA?

A: Maturation of eukaryotic mRNA often entails the removal of RNA sequences (introns or intervening…

Q: explain which sequences within the pre-mRNA determine where splicing occurs? How? Why?

A: Splicing of a pre-mRNA molecule occurs in several steps that are catalyzed by small nuclear…

Q: What is alternative splicing of pre-mRNAs?

A: When a single pre- mRNA is spliced in more than one way to produce two or more than two mature…

Q: Define the importance of zip code in actin mRNA 3'-UTR ?

A: The zip codes lacks the similarity at the levels either the primary or the secondary structures.…

Q: Please explain: Transcription-what is it and what does it involve? What happens at initiation,…

A: Transcription is the process by which DNA is copied or transcribed to mRNA, which carries the…

Q: How does alternative splicing affect gene expression?

A: Gene expression refers to the formation of functional product such as protein by a gene which…

Q: Define the pre-mRNA & mRNA spliceforms of Intron retention ?

A: Pre-mRNA is defined as the first transcript that occurs from a gene that is protein coding in…

Q: What is a polycistronic mRNA? How are polycistronic mRNAs formed?

A: Answer:Introduction: Polycistronic mRNA means messenger RNA means mRNA containing data  for the…

Q: Is the shorter length of the mature mRNA a good thing or a bad thing?

A: RNA is the nucleic acids similar to the DNA and contains uracil instead of the thymine. It plays…

Q: What are the “protein synthesis factories?” Give an overview of the relationship between these…

A: Answer: The process of translating mRNA in to long chains of amino acids , proteins in the subunits…

Q: plain the steps involved in rna processing

A: RNA process is that the term conjointly accustomed describe the sequence of events through that the…

Q: introns removed during eukaryotic pre-mRNA processing

A: Pre-mRNA splicing refers to the precise removal of introns from the newly transcribed RNA. All…

Q: What is the purpose of RNA-RNA rearrangements during pre-mRNA splicing?

A: INTRODUCTION A molecule compare to DNA is ribonucleic acid (RNA). RNA is one-stranded, and DNA is…

Q: Discuss the advantages, in terms of protein structure and evolution, that result from alternative…

A: Alternate splicing allows a single gene to code for multiple proteins. The protein translated from…

Q: How mRNAs are often translated immediately and degraded ?

A: RNA is the short form for Ribonucleic acid, and it is an important biological macromolecule found in…

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.