Describe the steps of RNA interference.

Q: How can transcription factors influence the transcription of DNA? Select all that apply.

A: Transcription factors regulate the process of transcription of genes i.e. converting of DNA to RNA,…

Q: Why is mRNA modified after initial transcription?

A: Transcription is the process in which complementary strands of DNA act as a template and transcribed…

Q: How is RNA interference used in the analysis of gene function?

A: RNA interference is a method in recombinant DNA technology which includes the post-transcriptional…

Q: Why will a mistake in the RNA code alone not become a mutation?

A: A change in the genetic code is called a mutation when it becomes a permanent part of the genome of…

Q: What is the predicted size of the corresponding mature mRNA in base pairs (bp), excluding the 5’ cap…

A: The predicted size of the corresponding mature mRNA in base pairs (bp), excluding the 5’ cap and 3’…

Q: Describe how RNA interference silences genes.

A: Gene silencing:  It is process of silence the gene  to prevent from synthesizing new gene after…

Q: Describe the process of transcription, focusing on the role of RNA polymerase, sigma (σ) factors,…

A: Transcription is a process of transcribing the template DNA into complementary mRNA sequence which…

Q: Why would a cell use SOS repair, considering that it introduces mutations?

A: Answer :- Sos reaction is extreme arrangement when the DNA harm is high that on the off chance that…

Q: Identify three ways transcription is different from replication.

A: Transcription: The formation of RNA take place from the template strand DNA. It occurs to form RNA…

Q: How does RNA interference work?

A: In the central dogma,  the Ribonucleic acid (RNA) is formed from the template of Deoxyribonucleic…

Q: Define operon.

A: Step 1 Gene regulation is the phenomenon of switching off as well as switching on of the genes…

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: Describe the process of RNA splicing, including the roles of the spliceosome and self-splicing RNA…

A: RNA splicing is a form of RNA processing in which a newly made precursor messenger RNA (pre-mRNA)…

Q: List the different types of RNA modifications.

A: Biomolecules are the compounds that are necessary for different biological processes occurring in a…

Q: Describe how polypeptides are modified after translation

A: Modification after translation are called Post translational modifications. This is done to form the…

Q: What roles can RNA play, other than that of transmission of the genetic message?

A: RNA is one of the two major genetic materials present in the living and non-living (such as viruses)…

Q: What would be the likely effect of a mutation that prevents σ from dissociating from the RNA…

A: After the initiation of the transcription, the RNA strand would elongate by the action of RNA…

Q: Explain the physical barrier to RNA polymerases ?

A: RNA polymerase is a crucial enzyme in the process of transcription which binds to the promoter…

Q: Describe the steps in transcription that require complementary base pairing

A: Transcription is a process of synthesis of ribonucleic acid (RNA) especially messenger ribonucleic…

Q: Explain different types of point mutations with specific examples and coding sequences.

A: Mutations are the alterations or the changes that occur in the DNA. Mutagens are the agents that are…

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: Define RNA interference (RNAi)  mechanism ?

A: RNA interference is a natural phenomenon, where an mRNA is silenced so it inhibits the protein coded…

Q: Describe the steps that occur during the initiation, elongation, and termination stages of…

A: The translation is defined as the conversion of mRNA into proteins. The nucleotides in the group of…

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: Describe four types of RNA that perform distinctfunctions

A: Introduction :-   Ribonucleic acid (RNA) is a linear molecule made up of four different…

Q: What is the consequences of RNA interference and what is the primary usefulness of this technique…

A: Introduction RNA interference:- It is a gene regulatory system, which is used to silence a…

Q: Identify the sites of lagging strand synthesis. Select all that are true. B

A: DNA replication of the double-stranded DNA occurs simultaneously at both strands. The replication…

Q: Explain about small interfering RNAs (siRNAs) ?

A: Small-interfering RNA was discovered in year 1990s as a double-stranded, non-coding RNA molecule…

Q: List three examples of proteins that act on nucleic acidsduring transcription

A: Three examples of proteins that act on nucleic acids during transcription are: RNA polymerase I:…

Q: For what purpose the process of RNA interference has been used?

A: Ribonucleic acid (RNA) are polymeric organic molecules, which are essential for carrying out various…

Q: Explain the Combinatorial strategies at the RNA level?

A: Ribonucleic acid ( RNA) is a polymeric molecule which is important in the coding, decoding,…

Q: Why is RNA synthesis not as carefully monitored for errors as is DNA synthesis?

A: A human cell can make 10-100 transcription error per second. where errors are a specific part of the…

Q: What type of mutation is shown below:

A: Structural chromosomal mutations refer to the changes in structure of a chromosome due to insertion,…

Q: Explain Micro-RNA-containing genes?

A: Genes are the hereditary units that are transmitted from one generation to another generation. The…

Q: What are the termination of transcription explain briefly?

A: The central dogma of biology explains the flow of information from genes to protein by two…

Q: Describe the characteristics of a bacterial promoter.

A: An operon is a functional unit of DNA (Deoxyribonucleic acid) containing a cluster of genes under…

Q: RNA degradation

A: Defective RNA are produced by ‘mistakes’ by the RNA processing machinery at the time of maturation…

Q: Briefly discuss RNA interference.

A: RNA interference (RNAi) / Post-Transcriptional Gene Silencing (PTGS)  It is a conserved…

Q: Explain the most important concept of RNAi ?

A: A "nucleic acid" is a nucleotide-based linear polymer that is part of the cell's information…

Q: Describe the different kinds of mutations.

A: A mutation is an adjustment in the nucleotide succession of the genome of an organic entity,…

Q: Define the general features of the model of translation ?

A: After the process of transcription of DNA to RNA in the nucleus of the cell, ribosomes in the…

Q: Outline the steps of RNA interference.

A: A mutation is a permanent change in the DNA of a cell such that the sequence deviates from what is…

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.