Question

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?

  1. 5’ end of primary transcript
  2. 5’ end of guanine
  3. Guanine
  4. Methyl group
  5. A and B

Homework Answers

Answer #1

5` end of the mRNA is processed and 7 methyl Guanosine is added to the 5` end, first gamma phosphate at the 5` end of the mRNA is removed ( gamma phosphate from the first nucleotide in the RNA) then GMP is added ( GMP is obtained by the removal of pyrophosphate from GTP), then GMP is methylated, this methyl guanosine is added to the 5` end via 5’-5’ linkage.

RNA transcribed is called pri-mRNA, 5`-5` linkage is formed between 5` end of the pri-mRNA and 5` end of guanosine.

so the answer is E) A and B

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 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
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
1)In DNA, the designations 3' and 5' refer to the A)carbon or nitrogen atoms on the...
1)In DNA, the designations 3' and 5' refer to the A)carbon or nitrogen atoms on the rings of purine or pyrimidine bases. B)cross-linking of the third and fifth carbon atoms of deoxyribose. C)bonds that form between adenine and thymine and between guanine and cytosine. D)bonding between purines and deoxyribose and between pyrimidines and deoxyribose. E)carbon atoms of deoxyribose to which phosphate groups may bond. 2) Accuracy in the translation of mRNA into the primary structure of a protein depends on...
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
1. Why can't transcription and translation of an mRNA occur at the same time in eukaryotes...
1. Why can't transcription and translation of an mRNA occur at the same time in eukaryotes like it does in prokaryotes? In bacteria, translation of an mRNA can begin before its transcription is complete. mRNA synthesis begins at the 5' end and moves toward the 3' end.  After the 5' end is made, ribosomes can bind and begin translation. This coupling of transcription and translation does not occur in eukaryotes. Why not? 2. There is an amino acid that transfers its...
5. During Codon recognition (a) the ribosome moves towards the 3’ end of the mRNA   (b)...
5. During Codon recognition (a) the ribosome moves towards the 3’ end of the mRNA   (b) a tautomeric shift occurs   (c) a peptide bond forms   (d) anticodon and codon pairing occurs   (e) all of the above
What is/are the phenotypes when Guanylyltransferase in 5' CAP is mutated at the Cellular Level? How...
What is/are the phenotypes when Guanylyltransferase in 5' CAP is mutated at the Cellular Level? How does this genotype affect the phenotype of the cell?
Where does synthesis of the product actually begin in Translation? a. +1 Start Site b. 5'-cap...
Where does synthesis of the product actually begin in Translation? a. +1 Start Site b. 5'-cap c. Start Codon d. Primer e. Origin of Replication
Part A: Using a codon table, translate this section of mRNA 5’ ----CGGAUUCUCGGGAAC---- 3’ Part B:...
Part A: Using a codon table, translate this section of mRNA 5’ ----CGGAUUCUCGGGAAC---- 3’ Part B: A bacterium has this sequence for the same piece of mRNA: 5’ ----CGGAUUCACGGGAAC---- 3’ What type of mutation does this represent? Explain the consequences of this mutation on the protein AND on the cell.
In the field of group dynamics, to what does status refer? How do high status members...
In the field of group dynamics, to what does status refer? How do high status members of a group tend to be treated?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT