Nick translation is an example of the process that would occur when DNA polymerase I is replacing an RNA primer with DNA. Which of these activities would be involved in nick translation?
| 3'-5' exonuclease and 5'-3' polymerase |
| 5'-3' exonuclease and 5'-3' polymerase |
| 5'-3' exonuclease and 3'-5' polymerase |
| 3'-5' exonuclease and 3'-5' polymerase |
5'-3' exonuclease and 5'-3' polymerase :
Replication is initiated by DNA polymerase in the 5'- 3' direction with the help of an RNA primer and is finally replaced with DNA. During the termination of replication there is a need to join the newly synthesized DNA strand with the existing RNA primer in the 5'- 3' direction. Hence to remove the RNA primer with the ongoing DNA strand, a polymerase with 5'-3' exonuclease which can remove RNA in the 5'- 3' direction is necessary.
Nick translation is an example of the process that would occur when DNA polymerase I is...
The cell must remove and replace an RNA primer with DNA, if DNA pol I was the only enzyme available to do this, which activities must it use? a. 3'-5' exonuclease and 5'-3' polymerase b. 5'-3' exonuclease and 5'-3' polymerase c. 5'-3' exonuclease and 3'-5' polymerase d. 3'-5' exonuclease and 3'-5' polymerase
Steps in Strand Synthesis Nick ,5' 3' exonuclease RNA primer • Primer removal uw Pol sites 3' 5' exonuclease Replacing RNA with DNA What is the function of DNA polymerase I, RNAse H? How do they work? NMPS released dNTPs added Poll movement nuclease Pol 1/RNAse H will use_ activity. A. 5' to 3' B. 3' to 5' dNTPs dNMPs, PP, uw Does this work on leading or lagging strands? A. Lead B. Lag C. Both Figure 11-7 Molecular Biology:...
Identify the components of replication, transcription, and translation processes. Replication transcription translation DNA polymerase, deoxynucleoside triphosphate, primer, RNA polymerase, nucleoside triphosphate, transfer RNA, ribosome, messenger RNA , promoter, ribosomal RNA
Which of the following is not a property of DNA polymerase? a. It is associated with a sliding clamp only on the leading strand b. It requires a primer to work c. Its exonuclease activity is involved in proofreading d. It adds dNTPs only in the 5' to 3' direction
Which of the following is not a property of DNA polymerase? a.) It requires a primer to work b.) Its exonuclease activity is involved in proofreading c.) It is associated with a sliding clamp both on the leading and lagging strands d.) It adds dNTPs only in the 3' to 5' direction
What would be the effects on DNA replication if mutation of DNA polymerase III caused it to lose each of the following activities: 1. 5' to 3' polymerase activity 2. 3' to 5' exonuclease activity:
Can someone help explain complete the following sentences on E coli DNA polymerase In the DNA polymerase active site, a 3’ –O- nucleophile attacks a phosphate in the incoming dNTP to elongate the growing strand. Here, the reaction intermediate is stabilized by this metal ion: The metal ion described in (a) is stabilized at the DNA polymerase active site by binding to side chains of which amino acid: The 3-5’ exonuclease reaction is important for which process? Which DNA polymerase(s)...
2. When transcribing an mRNA strand, RNA polymerase uses the strand of DNA to match complementary bases with. RNA polymerase always reads this strand in the direction and always builds mRNA in the direction. (1.5 pts) 3. (0.5 pt) What is the significance of the +1 site in regards to transcription of mRNA? t) When translating an mRNA sequence, where does the ribosome always begin? 5. (0.5 pt) When translating an mRNA sequence, what signals the ribosome to end translation?...
4. The enzyme DNA polymerase has two important activities: 5-10-3 polymerase and 3 '-10-5'exonuclease. The 5'-to-3' polymerase makes one misincorporation per 100,000 incorporations. A misincorporation occurs when the "wrong" nucleotide-residue is added to the growing DNA-molecule, such that the added residue is NOT complementary in the normal Watson-Crick way (G with C, A with T) to the residue in the template DNA. Normally, the 3'-to-5'exonuclease corrects most of these misincorporations, reducing the misincorporation rate to one in 10,000,000. If a...
Define termsDNA, RNA, nucleotides, plasmid, helicase, DNA polymerase, primase, RNA primer of DNA replication, mutation, gene, amino acid, polypeptide chain, protein, codon, promoter region of a gene, RNA polymerase, transcription, mRNA, tRNA, RNA, ribosomes, translation, gene expression, conjugation, conjugative pilus, transformation, transductionExplain concept or process• Describe how nucleotides are linked together to form a single strand of nucleic acid• Explain the concept of a complementary pairing • Describe how DNA replication occurs in bacteria • Explain why a primer is necessary for...