What are exons and introns? How do they relate to premRNA and posttranscriptional processing?

Q: What is RNA splicing?

A: RNA is a long chain of ribonucleotides connected together via phosphodiester bonds. It works in gene…

Q: In the termination phase of transcription what occurs? What is terminating or stopping

A: * Transcription is the process in which a  segment of DNA will be copied into RNA. *This segments of…

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 does small nuclear RNA help with the processing of RNA?

A: Small nuclear RNA (snRNA) is a small type of RNA molecule. They are transcribed by either RNA…

Q: control

A: Post transcriptional control is the control of gene expression at the RNA level.  It occurs once the…

Q: Where in eukaryotic cells does mRNA synthesis occur? To where do these molecules migrate?

A: Eukaryotic cell: This cell contains the nucleus, lysosomes, endoplasmic reticulum, mitochondria,…

Q: What happens to the rate of transcription when glucocorticoid is present?

A: The major antiinflammatory effects of glucocorticoids appear to be due to interaction of the…

Q: How histone deacetylases (HDACs) remove acetyl groups from histone tails ?

A: Histones are highly basic proteins that play an essential role in the packaging chromosomes.…

Q: What are Transcribed Regions?

A: The term transcribed is related to the process of transcription. Transcription is one of the…

Q: What are core histones?

A: DNA is wrapped around histone octamer to form nucleosome. In a nucleosome structure of DNA double…

Q: What are upstream activating sequences (UASs)?

A: Transcription is defined as the process in which m-Rna is formed from the template dna.this require…

Q: What are the steps involved in the processing of eukaryotic pre-MRNA? why is this process important?

A: Eukaryotic pre-mRNA undergoes extensive processing where is pre - tRNA, pre rRNA in both prokaryotes…

Q: What is mean by RNA editing ?

A: RNA is a nucleic acid present in the cells of living beings.

Q: Name the three main stages of pre-mRNA processing. Explain the importance of each of the stages of…

A: Pre-mRNA, or precursor mRNA, is an immature RNA molecule that is transcribed from a gene in the cell…

Q: How are CTP and UTP derived from UMP?

A: UMP (uridine monophosphate) or 5’-uridylic acid is a type of nucleotides that form RNA polymers. The…

Q: What are Enhancers in transcription ?

A: Proteins are important biomolecules that are made up of repeating units called amino acids. Amino…

Q: What are the purposes of elongases and desaturases? Where are the enzymes located?

A: Introduction: Enzymes are the biological catalysts which means they are the catalysts of life. A…

Q: What is transcription attenuation?

A: Transcriptional attenuation is a mechanism that causes premature termination of transcription under…

Q: How is mRNA edited?

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

Q: What is methylation ?

A: The chromatin of a chromosome is made up of DNA and proteins. DNA carries the genetic instructions…

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: How eukaryotic pre-mRNA transcripts are processed ?

A: Processing of eukaryotic mRNA (messenger ribonucleic acid) is responsible for formation of stable…

Q: What is retrotransposons?

A: Transposable elements (TEs) are deoxyribonucleic acid (DNA) sequences that move from one location to…

Q: How RNA processing adds a tail to the 3′ end of eukaryotic mRNAs?

A: Transcription is a process by which DNA sequences are copied by an enzyme called RNA polymerase to…

Q: What are long terminal repeat (LTR) ?

A: Long terminal repeat are repetitive sequence of DNA found at the end of pro-viral DNA after reverse…

Q: what are Pre-mRNAs?

A: RNA is the ribonucleic acid involved in a biological process like gene expression. There are four…

Q: What is mRNA surveillance ?

A: Replication refers to a process by more copies of DNA are formed on a template DNA. Synthesis of RNA…

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 are transposable elements?

A: DNA is the genetic material that carries genetic information in the form of coded nucleotide…

Q: Where does transcription begin?

A: A gene is a functioning heredity unit made up of DNA that provides instructions for the creation of…