Question: The Precursors of most eukaryotic rRNAs are synthesized by A. RNA polymerase I. B. RNA polymerase…
Biochem help please
Show transcribed image text The Precursors of most eukaryotic rRNAs are synthesized by A. RNA polymerase I. B. RNA polymerase II. C. RNA Polymerase III. D. DNA polymerase alpha. E. autocatalytic RNAs. 27. Which postranscriptional modification serves to identify the mRNA to ribosomes? A. Poly(A) tail B. intron excision C/5' cap consisting of 7-methylguanosine D. exon skipping E. alternative splicing 28. Which of the following are components of the spliccosome? A. Pre-m RNA B. sn RNPs C. Pre-mRNA binding proteins D. all the above E. none of the above 29. which of the following best describes the function of poly(A) tails for eukaryotic mRNAs? A. They fucntion as splice sites. B. No role has been observed for these features they signal transcription termination. D. They are required for accurate translation. E. They have protective role against degradation. 30. Cytosine3 makes up 42% of the nucleotides in a sample of DNA form an organism Approximately what precentage of the nucleotides in this sample will b
The Precursors of most eukaryotic rRNAs are synthesized by A. RNA polymerase I. B. RNA polymerase II. C. RNA Polymerase III. D. DNA polymerase alpha. E. autocatalytic RNAs. 27. Which postranscriptional modification serves to identify the mRNA to ribosomes? A. Poly(A) tail B. intron excision C/5' cap consisting of 7-methylguanosine D. exon skipping E. alternative splicing 28. Which of the following are components of the spliccosome? A. Pre-m RNA B. sn RNPs C. Pre-mRNA binding proteins D. all the above E. none of the above 29. which of the following best describes the function of poly(A) tails for eukaryotic mRNAs? A. They fucntion as splice sites. B. No role has been observed for these features they signal transcription termination. D. They are required for accurate translation. E. They have protective role against degradation. 30. Cytosine3 makes up 42% of the nucleotides in a sample of DNA form an organism Approximately what precentage of the nucleotides in this sample will b
