The RNAi and the microRNA (miRNA) pathways share many components and characteristics. What unique feature distinguishes the microRNA pathway from RNAi? a) only the RNAi pathway is initiated by dsRNA molecules b) the miRNA pathway does not require Dicer c) the miRNA pathway does not require RISC. d) miRNAs have 100% complementarity with their mRNA targets to block translation e) siRNAs that act in RNAi have 100% complementarity with their mRNA targets resulting in endonucleolytic cleavage

Q: 69. Which of the following statements about RNA splicing is false? A) Introns are not found in…

A: RNA splicing permits numerous functional mRNAs to be produced from a single transcript that codes…

Q: List five types of cancer in which ncRNAs can be involved.

A: Non-coding RNA (ncRNA) is an RNA molecule that is not translated into a protein. Epigenetic related…

Q: RNAs that direct modification of RNAs by base-pairing with the target RNAs Group of answer choices…

A: The changes in the ribonucleic acid's (RNA) chemical composition induced in it after its synthesis…

Q: gene transcription regulation in eukaryotes that are post-transcriptional/pre-translational:

A:

Q: My Avya mouse is brownish because a) the CpG island with the transposon is unmethylated. b) it was…

A: Epigenetic systems that facilitate gene-environment interactions are involved in the ability of…

Q: What is the difference between an miRNA and an siRNA. How dothese ncRNAs affect mRNAs?

A: Ribonucleic acid or RNA is a polymeric molecule of nucleic acid which is essential in various…

Q: Why Cas9 requires a single guide RNA (sgRNA) ?

A: The RNA guide is mainly transcribed from the intergenic DNA maxicircle region and complements mature…

Q: MicroRNAs (miRNAs) are short, noncoding, single-stranded RNAs approximately 19-25 nucleotides in…

A: Micro RNAs are small RNAs that are capable of binding messenger RNAs and they keep destroying them.…

Q: A full-length eukaryotic gene is inserted into a bacterial chromosome. The gene contains a complete…

A: The eukaryotic DNA is composed of coding and non-coding sequences, almost 90% are non-coding…

Q: Explain how some lncRNAs serve as molecular decoys for RNA-binding proteins and miRNAs.

A: LncRNAs or Long noncoding RNAs are pervasive genes in important class that are involved in various o…

Q: How does miRNA act similar to RNA¡ and does the process of the mechanism differ?

A: RNAi is the biological process  in which short RNA molecules suppresses gene expression in a…

Q: Which of the following statements is not true of both the LacI and TrpR repressor proteins?a) an…

A: The objective of the question is to identify the statement that is not true for both LacI and TrpR…

Q: Which of the following introns have self-splicing activity?a) Group I and group IIb) Group II and…

A: An intron is a nucleotide sequence present within a gene which is removed by RNA splicing before…

Q: What is a functional consequence of RNA editing?

A: RNA editing is otherwise known as RNA modification for obvious reasons. The process deals with the…

Q: Regarding the process of gene transcription in eukaryotes, it is correct to state that A)The…

A: Transcription is a process of copying a DNA segment into RNA.

Q: 1)Which of the following would represent mRNA for the above minigene? a.) AUG CGC GUU CCC GUG UAA…

A: The mRNA is synthesized based on the template strand of the DNA, which is complementary to the…

Q: An ncRNA may have the following functions: scaffold, guide, alterer of protein function or…

A: Introduction  RNA stands for Ribose Nucleic Acid; it also serves as genetic material in many species…

Q: The number of microRNAs encoded by the genome varies widely among organisms: some species have many…

A: Micro ribonucleic acids (miRNAs) are small noncoding RNAs that are18- to 28 nucleotides in length.…

Q: What are three similarities and three differences between Chromatin Remodeling and microRNAs?

A: Chromatin remodelling is basically chemical modification of the chromatin structure for uncoiling…

Q: a mutation in the gene encoding Dicer would most likely result in: A) a failure to break the H…

A: Dicer, also known as endoribonuclease Dicer or helicase with RNase motif, is an enzyme that in…

Q: Which sequence is most likely to be found in a promoter? a) CGGTGTATATCGTAC b) GTACAGTCATCCCGT c)…

A: Promoter It is a DNA sequence that controls whether a gene is turned on or off. The promoter…

Q: Which of the following is not involved in the post-transcriptional processing of t-RNA? a)…

A: a) Attachment of poly-A tail: Poly-A tails are typically added to the 3' end of eukaryotic mRNA…

Q: Imagine the four basic components of gene regulation are DNA, RNA, proteins, and small molecules.…

A: DNA and RNA are self-replicating genetical materials. Various types of RNAs are transcribed from…

Q: Suppose the tRNA synthetase responsible for attaching tryptophan to tRNA is muted in a bacterial…

A: In order to maintain correct transcription and translation, bacterial operons use attenuation as a…

Q: List three important properties of RNA polymerase from E. coli.

A: RNA polymerase from E.coli consists of 5 subunits- two alpha subunits, one beta subunit, one beta…

Q: Contrast the origins and functions of the three maincategories of small regulatory RNAs (miRNAs,…

A: The non-coding ribonucleic acid (RNA) that plays a role in the activation or inhibition in the…

Q: Nucleosome-free regions: A) are always only associated with genes that are being actively…

A: Introduction :- The organization of genetic material in eukaryotic organism's nucleus is done with…

Q: 7) Which of the following needs to occur for transcription to take place in prokaryotes? A) The RNA…

A: Prokaryotic transcription is the process by which the genetic material in prokaryotes is converted…

Q: Regarding eukaryotic genes, it is correct to state that:  a) Distal enhancer-like elements decrease…

A: Eukaryotic cell has a true nucleus surrounded by a nuclear membrane which separates the nucleus from…

Q: What is a response element? O A) A short stretch of DNA sequence implicated in the initiation of…

A: They are short sequences of DNA within a gene promoter or enhancer region that helps in regulation…

Q: Given that ncRNA can have separate protein interaction sequences and nucleotide interaction…

A: ncRNA (non-coding ribonucleic acid) refers to the RNA molecule which is formed by the transcription…

Q: RNAs that down regulate transcription from repetitive regions of the genome. Group of answer choices

A: b) rasi RNAs

Q: What is the difference between crRNA and tracrRNA? Why are both needed for Cas9 to function?

A: A prokaryotic adaptive immunity system called CRISPR (Clustered Regularly Interspaced Short…

Q: If the above gene is one of the three structural genes of the lac operon that codes for the protein/…

A: Introduction Lactose operon(lac operon) is a system which includes genes that are essential for…

Q: Which statement regarding gene structure in eukaryotes is FALSE ("upstream" refers to the 5'…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: The operator of the lac operon is upstream of the gene that codes for enzymes. What does upstream…

A: Lac operon: The lac operon is a genetic regulatory system found in bacteria that controls the…

Q: Some eukaryotic mRNAs contain an AU-rich element in the 3’ untranslated region.  What would be the…

A: The regulation of gene expression is done by the pre-mRNA processing and degradation of mRNA. The…

Genome annotation

The technique of linking biological information to genome sequences is termed genome annotation. Gene annotation is the method of identifying gene locations and coding sections. It helps us understand what these genes are doing in the body through establishing structural characteristics and linking them to the actions of various proteins.