Question

Which of the following best describes the 'cap' modification of eukaryotic mRNA? a) A modified guanine...

Which of the following best describes the 'cap' modification of eukaryotic mRNA?

a) A modified guanine nucleotide added to the 3' end of the transcript

b) A modified guanine nucleotide added to the 5' end of the transcript

c) A string of adenine nucleotide added to the 5' end of the transcript

d) A string of adenine nucleotide added to the 3' end of the transcript

Homework Answers

Answer #1

Ans:- b) A modified guanine nucleotide added to the 5' end of the transcript

Capping and tailing is a part of post transcriptional modification.

hnRNA undergoes two additional process called as capping and tailing.in capping an unusual nucleotide (methyl guanosine triphosphate) is added to 5- end of hnRNA. in tailing adenine is added . it is added to 3-end of hnRNA. process of capping helps in recognition of mRNA by the ribosomes. and protection from RNases.

Capping protect the m rna from RNase.

So all other options are wrong

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Which of the following statements is incorrect regarding polyadenylation of a eukaryotic mRNA a. The CPSF...
Which of the following statements is incorrect regarding polyadenylation of a eukaryotic mRNA a. The CPSF and CstF proteins are involved in polyadenylation b. The mRNA is cut prior to polyadenylation c. The adenines are added by poly(A) polymerase d. The poly(A) tail is a series of up to 250 adenine nucleotides that are placed at the 5’ end of the RNA
What does the 5’-5’ linkage refer to in the mRNA cap? 5’ end of primary transcript...
What does the 5’-5’ linkage refer to in the mRNA cap? 5’ end of primary transcript 5’ end of guanine Guanine Methyl group A and B
There are a number of types of pre-Mrna PROCESSING WITH IMPORTANT FUNCTIONS INEUKARYOTIC TRANSCRIPTION. WHICH OF...
There are a number of types of pre-Mrna PROCESSING WITH IMPORTANT FUNCTIONS INEUKARYOTIC TRANSCRIPTION. WHICH OF THE FOLLOWING ARE FUNCTIONS OF THE ADDITION OF THE 5’CAP? (select all that apply) Assists the mRNA in binding to the large ribosomal subunit Facilities transport of the mRNA into the cytoplasm Removings the non-coding regions from the pre-mRNA Constructs multiple products from a single gene Assists in RNA splicing Stabilizes mRNA at the end adjacent to the start codons Alters nucleotide sequence in...
Which of the following statements about eukaryotic RNA is correct? A. Eukaryotic RNA is capped at...
Which of the following statements about eukaryotic RNA is correct? A. Eukaryotic RNA is capped at its 3' end. B. Eukaryote transcript splicing allows for subtle regulation of gene activity. C. A primary eukaryotic transcript can only encode for one protein. D. Processing of the RNA can only occur after termination. E. Eukaryotic RNA is polyadenylated at its 5' end.
1. Post transcriptional modification of RNA by addition of nucleotides that are not encoded in the...
1. Post transcriptional modification of RNA by addition of nucleotides that are not encoded in the DNA sequence occurs for some RNA products. Which of the following is correct pairing of RNA product and modification? A. tRNA - CCA added to 3' end B. mRNA - CCA added to 3' end C. rRNA - poly A added to 3' end mRNA - 7meG added to 3' end 2. Predict the mRNA sequence that is encoded by the DNA sequence shown...
An mRNA as it leaves the nucleus will have what on its 3' end? A) polyA...
An mRNA as it leaves the nucleus will have what on its 3' end? A) polyA tail B) exon C) guanine cap D) intron E) AUG codon
Which of the following best describes the arrangement of regulatory proteins at the promoter of the...
Which of the following best describes the arrangement of regulatory proteins at the promoter of the lac operon during the portion the of E. coli growth curve indicated by a star to the right, when grown in media containing both glucose and lactose? a) CAP bound, Repressor bound b) CAP bound, Repressor not bound c) CAP not bound, Repressor bound d) CAP not bound, Repressor not bound
Which of the following events does NOT occur after the transcription of poly-A-signal sequences into mRNA?...
Which of the following events does NOT occur after the transcription of poly-A-signal sequences into mRNA? 5’ capping of the mRNA Cleavage of the mRNA releasing it from RNA polymerase Additions of many adenine residues to the 3’ end of the mRNA Termination of transcription
9) Which best describes the result of mitosis? A) 4 haploid cells are created from one...
9) Which best describes the result of mitosis? A) 4 haploid cells are created from one diploid cell. B) 2 diploid cells are created from one diploid cell.   C) 1 diploid cell results from fertilization of egg by sperm. D) 1 haploid cell is created from one haploid cell. 10) Which of the following is NOT true about DNA? A) Humans have 46 chromosomes in each somatic cell.    B) DNA can be used to solve crimes and learn about our...
1. Which chemical group is added to specific sites near the 5" end of eukaryotic mRNAs...
1. Which chemical group is added to specific sites near the 5" end of eukaryotic mRNAs besides a cap derived from GTP? a. acetyl b. methyl c.hydroxyl d. carboxl e. phosphoryl
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT