miRNAS P. are synthesized as long pri-miRNAs (up to 1000 nucleotides). Q. are transcribed by RNA polymerase II. R. are synthesized from pre-miRNAs by an RNase III enzyme Drosha in the cytoplasm. S. are synthesized from pri-miRNAs by an enzyme dicer in the nucleus. a. P and Q b. Q and S C. P and S d. R and S

Q: Match the key complex or product to its related process of regulating gene expresSion. a.…

A: Operon is a functional unit of DNA. It contains a cluster of genes transcribed in mRNA and…

Q: 97 Which of the following is examples of a transposable element found in bacteria? (multiple choice…

A: Note- we are supposed to answer three question according to our guidelines, please repost other…

Q: . List the sequences of RNA that would be transcribed template sequences. a. Ans:…

A: Since you have posted a question with multi- sub parts , we will solve first three sub-parts for…

Q: What is the purpose of alternative splicing a. Alternative spiicing allows a protein to be included…

A: RNA splicing is the process of removal of introns(non coding sequences) from newly made mRNA…

Q: 24. TRUE or FALSE: A microRNA (in red) binds to its mRNA target (black) as shown below:…

A: False  The target will be cleaved.

Q: . Show (on the image) 3 steps that must be taken to produce a mature mRNA molecule from this pre-…

A: The genetic material which is the DNA undergoes the process of replication to produce exact copies…

Q: An enhancer:  A. is a consensus sequence in DNA located where RNA polymerase first binds. B. may…

A: An enhancer refers to a sequence in the region of DNA that bind to certain transcription factors and…

Q: If an MRNA is alternatively spliced, then different introns are removed from a pre-MRNA, producing…

A: Alternative splicing is the process of splicing different combinations of splice sites with a…

Q: Match each of the following descriptions to the type of regulatory RNA affecting a "target" gene…

A: Of course! Let's break down each match:This regulatory RNA may increase transcription of the target…

Q: A. RNA polymerase does not require a template. B. all RNA is synthesiud in the nucleolus. C.…

A: Transcription is a process, during which RNA strand is synthesized over the DNA.

Q: The RNA-induced silencing complex (RISC) _____ i. Binds to and unwinds ds siRNA/miRNA to produce…

A: The answet is b. II only RNA-induced silencing complex(RISC) is a multiprotein complex which…

Q: he bands indicated by arrow "A" (to the left of the western blot) most likely represent:   A.…

A: The bands indicated by arrow "A" (to the left of the western blot) most likely represent:-

Q: Within a promoter, a transcriptional start site isa. located at the –35 sequence and is recognized…

A: In this question we discuss gene transcription in prokaryotes. Gene transcription in prokaryotes is…

Q: 1. In E.coli transcription of the Lac Operon is known to be under Global control. For this operon…

A: The lac operon, found in E. coli, comprises genes responsible for lactose transport and metabolism1.…

Q: Eukaryotic transcription  A. is independent of the presence of upstream consensus sequences. B.…

A: Eukaryotic transcription is the intricate process used by the eukaryotic cells to duplicate the…

Q: What would the direct consequence to a cell be if there was a loss of function of Transcription…

A: Transcription is the process in which the DNA is transcribed into an mRNA. There are three basic…

Q: Changes in a cell that affect micro RNAs lead to cancer because miRNAs... a. help a cell to…

A: Cancer can occur when- apoptosis( programmed cell death) is distributed, inhibition of growth…

Q: A mechanism of control in E. coli not discussed in this chapter involves pausing of ribosomes…

A: Introduction  Gene Regulation: Expression of gene is highly regulated in both prokaryotes as well as…

Q: Select one or more: O a. by the interaction of Rho and Rho binding sites in RNA. O b. by the…

A: Transcription is the process of making mRNA from DNA.it is always in the 5' to 3' direction.

Q: B. Both involve binding of rho, but rho-independent termination requires conformational change on…

A: After binding to the newly formed RNA chain, ρ factor moves along the molecule in a 5'-3' direction…

Q: ollowing is the sequence of a segment of mRNA: CGA AAA GUU UUU What are the anticodons of the…

A: mRNA is the polymer of nucleotides formed by the process of transcription using the DNA template…

Q: Which of the following is an intron and intergenic coded long transcripts, processed into stem and…

A: RNA (ribonucleic acid) is transcribed from DNA. It is also a genetic material in some…

Q: DNA Leading strand: 5' AAA ATA | CGC TTT| TTA ATT | AAC CCC GGG 3' A I B |C| D Exons: A, C, D…

A: The process of synthesizing RNA from the genetic information encoded by DNA is called Transcription…

Q: 83) The RDRP of the rotavirus a. Only produced in the first round of translation b. It is…

A: RdRP- is RNA dependent RNA polymerase. All retroviruses have RNA dependent RNA polymerases.

Q: If the lac operon is "on" and transcribed, what is produced by RNA polymerase? O a. RNA polymerase…

A: The lac operon is a group of genes that work together to regulate the metabolism of lactose in…

Q: How would you describe the "purpose" of alternative splicing? Alternative RNA splicing... is a…

A: Nucleic acid is a macromolecule present inside the nucleus of cell . It stores genetic material and…

Q: Which of the following is NOT true of miRNAs?   A. Pri-miRNAs are processed by Drosha in the…

A: A microRNA, also known as a miRNA, is a single-stranded, non-coding RNA molecule that is very small.…

Q: . Which of the following is an example of post-transcriptional gene repression?a. The amount of RNA…

A: Post-transcriptional gene repression means the expression of the gene in the form of protein is…

Q: Which of the following makes alternative RNA splicing possible? Group of answer choices A. Parts of…

A: Option A

Q: a. CRISPR-Cas9 is a valuable biotechnology tool. Explain how this system uses RNA and the result of…

A: CRISPR-Cas9  is known as unique biotechnology tool which allows medical researchers and geneticists…

Q: The main target for Cas9 to cleave is:

A: Cas9 /CRISPR 9 (Clustered regularly interspaced short palindromic repeat for protein 9)  is a…

Q: The transcription initiation factor “recruited” together with RNA-Pol II in the formation of…

A: Transcription is a process of making an RNA copy from a gene’s DNA sequence. This is known as…

Q: The RNA-induced silencing complex (RISC) I. binds to and unwinds ds siRNA/MIRNA to produce ss…

A:

Q: Which of the following activities DOES NOT happen during the initiation stage of transcription? A.…

A: Introduction :- The poly-A tail is a stretch of adenine nucleotides that is added to the 3' end of a…

Q: Compare and contrast miRNAs and siRNAs [may have more than one correct answer]. A Both miRNA and…

A: "siRENA" is likely a misspelling of "siRNA" (small interfering RNA). There's no known biological…

Q: RNA processing events include A. self splicing B. methylation of 45S FRNA C. snoRNA facilitates…

A: Introduction: RNA processing involves newly transcribed RNA molecules (primary transcript)…

Q: Assume researchers are able to isolate the intact mRNA for a gene called qrs. The qrs mRNA isolated…

A: Messenger RNA is synthesized with the help of RNA polymerase taking the help of template strand of…

Q: . Using a cDNA library, you isolated two differentcDNA clones that have sequences indicating that…

A: A complementary DNA library (cDNA) represents the genes collection that is encoded into the protein…

Q: Which mRNA modification is likely absent if the mRNA is degrading prematurely from the 5’ end of the…

A:

Q: Eukaryotes can control transcription by three overall type of process, they are ( selection from…

A: The regulation of transcription is more complex in eukaryotes as compared to prokaryotes. This…

Q: In the trp operon, tryptophan is best characterized as being a: A. repressor B. inducer C.…

A: Operon is clustered of Genes where a single mRNA consists of more than one functional gene.It is…

Q: Sequential binding of RNA polymerase II-TFIIF complex, TFIIE, and TFIIH completes…

A: RNA Polymerase II is responsible for the transcription of messenger RNA with the help of DNA. For…

Q: 4. To understand the function of the Bcl11a protein, scientists attempted to knockdown its…

A: Small interfering RNAs (siRNAs) are a powerful tool for gene silencing, having the potential to…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.