Homework Answers
RNA can acts as a catalyst by showing that the RNase- P , RNA subunit could catalyse the cleavage of precursor tRNA into active tRNA in the absence of any protein component. Like DNA , RNA can store and replicate genetic information , like protein enzymes , RNA enzyme ( ribozyme ) can catalysed chemical reaction that are critical for life.
The RNA World hypothesis is strengthened by A. lab selection of catalytic RNA with RNA...
The RNA World hypothesis is strengthened by A. lab selection of catalytic RNA with RNA dependent RNA polymerase activity. B. high G:C content of rRNA. C. catalytic activity of rRNA. D. A and C E. All of the above.
The 16S rRNA is not an mRNA but rather is a catalytic RNA that is a...
The 16S rRNA is not an mRNA but rather is a catalytic RNA that is a functional component of prokaryotic ribosomes. Would the genome annotation approach you used during the genome annotation lab have worked to identify a 16S ribosomal RNA gene? Why or why not?
How does the Trp repressor prevents RNA polymerase from initiating transcription? by blocking the ribosome binding...
How does the Trp repressor prevents RNA polymerase from initiating transcription? by blocking the ribosome binding site by forming a loop in the operator that restricts the passage of the polymerase by binding to the polymerase to inhibit its catalytic activity by physically blocking the DNA binding site of RNA polymerase
What does a small homo-lumo gap of transitonmetal have to do with its catalytic reactivity?
What does a small homo-lumo gap of transitonmetal have to do with its catalytic reactivity?
NA (15 pts 2. Ribozymes are a class of bio-active RNA with catalytic activity. Ribozymes own...
NA (15 pts 2. Ribozymes are a class of bio-active RNA with catalytic activity. Ribozymes own the ability to catalyze RNA hydrolysis and consequently function to regulate mRNA expression. Thus, ribozymes and their synthetic analogs have shown promise in gene therapy applications, in.an effort.to down-regulate detrimental mRNA expression (Curr. Opin. Chem. Biol. 1998, 2, 24-30) (a) The structure of a mRNA-ribozyme complex is ilustrated below. Circle the mRNA and ribozyme components of the complex and label them respectively. Describe two...
Why does E. coli have several different sigma factors? A.They allow RNA polymerase I, RNA polymerase...
Why does E. coli have several different sigma factors? A.They allow RNA polymerase I, RNA polymerase II and RNA polymerase III to bind to different promoters. B.They allow the different subunits of the RNA polymerase holoenzyme to bind to each other. C.They are redundant in case one is mutated. They all perform the same function. D.One is needed to transcribe mRNA. A second is needed to transcribe tRNA. And a third is needed to transcribe rRNA. E.They are used if...
Question 2a If the DNA template 5′- ATGGATGC -3′ is transcribed to RNA, the RNA would...
Question 2a If the DNA template 5′- ATGGATGC -3′ is transcribed to RNA, the RNA would be best described as... a. 3′- TACCTACG -5′. b. 5′- ATGGATGC -3′. c. 5′- AUGGAUGC -3′. d. 5′- UACCUACG -5′. e. 3′- UACCUACG -5′. Question 2b Which answer best summarizes how eukaryotic and bacterial RNA polymerases are different? a. Eukaryotes have several types of multimeric RNA polymerases, whereas bacteria only have one monomeric RNA polymerase. b. Eukaryotes have several types of RNA polymerases, one...
What do the catalytic mechanism of the enzyme lipase and the catalytic mechanism of chymotrypsin have...
What do the catalytic mechanism of the enzyme lipase and the catalytic mechanism of chymotrypsin have in common, what is different? What is the reason for the observed differences? Compare them step by step.
5. How does the telomerase-associated hTR RNA molecule facilitate the maintenance of telomeric DNA by the...
5. How does the telomerase-associated hTR RNA molecule facilitate the maintenance of telomeric DNA by the hTERT enzyme?
Oligo-dT(5’dTTTTTTTTTTTTTTTTTT3’) is used for the enrichment of polyA plus RNA, how does addition of UUUUU to...
Oligo-dT(5’dTTTTTTTTTTTTTTTTTT3’) is used for the enrichment of polyA plus RNA, how does addition of UUUUU to the oligodT (dTTTTTTTTTTTTUUUUUU) increase the accuracy of identification of polyA site and plus RNA by Next Generation Sequencing Is there still a possibility of getting a false positive? How so?
NA (15 pts 2. Ribozymes are a class of bio-active RNA with catalytic activity. Ribozymes own the ability to catalyze RNA hydrolysis and consequently function to regulate mRNA expression. Thus, ribozymes and their synthetic analogs have shown promise in gene therapy applications, in.an effort.to down-regulate detrimental mRNA expression (Curr. Opin. Chem. Biol. 1998, 2, 24-30) (a) The structure of a mRNA-ribozyme complex is ilustrated below. Circle the mRNA and ribozyme components of the complex and label them respectively. Describe two...
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