Which of the following statements about RNA interference are true? (Select all that apply.) siRNAs suppress gene expression by interfering with transcription RNA interference can temporarily suppress the expression of a target gene Duplex RNA can be intentionally inserted into an organism to suppress a gene siRNAs are short, 21- to 28-nucleotide long duplexes siRNA is cleaved by the Dicer enzyme complex
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Step 1: siRNAs can temporarily suppress the expression of a target gene by interfering with transcription. Show more…
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Identify the true statements about RNA interference. Select all the true statements. A. miRNA is cleaved by Dicer enzyme complex B. Duplex RNA (dsRNA) can suppress the expression of a gene. C. miRNAs are short duplexes approximately 21 nucleotides long D. miRNAs suppress gene expression by interfering with transcription E. RNA interference can temporarily suppress the expression of a target genes
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4. Which of the following statements describes a way that RNA regulate gene expression. a. mRNA structures can cause attenuation to prematurely stop transcription b. RNAs may sequester repressor proteins by binding to them c. RNAs may bind metabolites to promote transcription termination d. RNAs may activate quorum sensing pathways e. a, b, and c all describe how RNA regulates gene expression f. all of the statements describe how RNA regulates gene expression
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Which of the following statements about gene expression is false? a) More than one RNA polymerase can be transcribing a specific gene at a given time. b) More than one ribosome can be translating a specific transcript at a given time. c) Translation begins at a site called a promoter. d) Transcription stops at a site called a terminator. e) Some amino acids are coded for by more than one codon.
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