Essentials of Genetics Plus Mastering Genetics with eText -- Access Card Package (9th Edition) (Klug et al. Genetics Series)
9th Edition
ISBN: 9780134047201
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter CHST2, Problem 7RQ
Although exRNAs are found in many fluids within plants and animals, why are they usually found within vesicles or bound by proteins?
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Chapter CHST2 Solutions
Essentials of Genetics Plus Mastering Genetics with eText -- Access Card Package (9th Edition) (Klug et al. Genetics Series)
Ch. CHST2 - What are some of the different roles that RNA...Ch. CHST2 -
2. What arguments support the RNA World...Ch. CHST2 - Prob. 3RQCh. CHST2 - How is bacterial DNA methylation and expression of...Ch. CHST2 - What are the three types of small noncoding RNAs...Ch. CHST2 - The mechanism for RNA-induced transcriptional...Ch. CHST2 - Although exRNAs are found in many fluids within...Ch. CHST2 - How and why are eukaryotic mRNAs transported and...Ch. CHST2 - The RNA World Hypothesis suggests that the...Ch. CHST2 - Bacterial sRNAs can bind to mRNAs through...
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- Some eukaryotic mRNAs contain an AU-rich element in the 3’ untranslated region. What would be the effect on gene regulation by a microRNA (miRNA) if the AU-rich element was mutated or deleted?arrow_forwardA double-stranded RNA has been generated by release/splicing out of an intron within the nucleus...outline the pathway taken to generate microRNA and its action on the shutdown of protein biosynthesisarrow_forwardMicroRNAs are small RNA molecules that bind to the 3′ end of mRNA and suppress translation . Some eukaryotic mRNAs have internal ribosome-binding sites downstream of the 5′ cap, where ribosomes normally bind. In one investigation, miRNAs did not suppress translation by ribosomes that had attached to internal ribosomebinding sites ). What does this finding suggest about how miRNAs suppress translation?arrow_forward
- What is the difference between an miRNA and an siRNA. How dothese ncRNAs affect mRNAs?arrow_forwardWhile miRNA response elements (MREs) may be located anywhere within an mRNA, they are most often found outside the coding region in the 5 or 3 UTR. Explain why this is likely the case given that miRNAs often target more than one mRNA.arrow_forwardWhat is single guide RNA (sgRNA) ?arrow_forward
- Why do bacteria use formylated methionine in the initiator tRNA, while eukaryotes do not?arrow_forwardPre-mRNAs in mitochondria are converted to maturemRNAs through ______editing, which makes translation ofthe transcripts possiblearrow_forwardAn ncRNA may have the following functions: scaffold, guide, alterer of protein function or stability, ribozyme, blocker, and/or decoy. Which of these functions are mediated by each type of ncRNA listed next? Note: A singlencRNA may have more than one function. A. tRNAB. rRNAC. SRP RNAD. piRNAarrow_forward
- An ncRNA may have the following functions: scaffold, guide,alterer of protein function or stability, ribozyme, blocker, and/ordecoy. Which of those functions is/are mediated by each of thencRNAs listed next? (Note: A single ncRNA may have more thanone function.) A. HOTAIRB. RNA of RNasePC. microRNAD. crRNAarrow_forwardWhy Cas9 requires a single guide RNA (sgRNA) ?arrow_forwardmiRNAs target endogenous mRNAs in a sequence-specific manner. Explain, conceptually, how one might identify potential mRNA targets for a given miRNA if you only know the sequence of the miRNA and the sequence of all mRNAs in a cell or tissue of interest.arrow_forward
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