Question

The chemical reaction describing the 3' to 5' exonuclease activity of DNA Polymerase I of E.coli...

The chemical reaction describing the 3' to 5' exonuclease activity of DNA Polymerase I of E.coli is ______ .

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The chemical reaction describing the 3' to 5' exonuclease activity of DNA polymerase 1 of E.coli is proof reading/base excision reaction.

Reason:

In bacteria, DNA polymerases I have the ability to proofread, using 3’ → 5’ exonuclease activity. When an incorrect base pair is recognized, DNA polymerase reverses its direction by one base pair of DNA and excises the mismatched base. Following base excision, the polymerase can re-insert the correct base and replication can continue.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
DNA polymerases have 3'-->5' exonuclease activity. 1. Explain what 3'-->5' exonuclease activity is. 2. What triggers...
DNA polymerases have 3'-->5' exonuclease activity. 1. Explain what 3'-->5' exonuclease activity is. 2. What triggers this exonuclease activity?
Which of the following statements about DNA repair is correct during excision repair, an exonuclease is...
Which of the following statements about DNA repair is correct during excision repair, an exonuclease is the first enzyme involved in removing a single-stranded segment of DNA from the template strand none of the answer is correct during mismatch repair, a methylated guanine in the consensus sequence GATC found on the parent strand activates the Mut complex the Okazaki fragments synthesized during base excision repair are synthesized in a 3’ -- > 5’ fashion repair of methylated DNA requires a...
Exonuclease activity is important for DNA replication. Answer the following parts: What does it mean for...
Exonuclease activity is important for DNA replication. Answer the following parts: What does it mean for an enzyme to have exonuclease activity What is 3’ to 5’ exonuclease activity for in DNA replication? What molecules do 3’ to 5’ exonuclease activity in eukaryotes
You are characterizing a new DNA polymerase. When the enzyme is incubated with [32P]DNA and no...
You are characterizing a new DNA polymerase. When the enzyme is incubated with [32P]DNA and no dNTPs, you observe the release of [32P]dNMPs. This release is prevented by adding unlabeled dNTPs. Which of the following describes the reactions that most likely underlie these observations? a)The DNA polymerase contains 3'-5' and a 5'-3' exonucleases that degrade DNA to produce [32P]dNMPs. b)The DNA polymerase contains a 5'-3' exonuclease that degrades DNA to produce [32P]dNMPs. c)The DNA polymerase contains a 3'-5' exonuclease that...
the 5 -3 exonuclease activity allows
the 5 -3 exonuclease activity allows
Mention the functions of this 5 enzymes found in E. coli: DNA polymerase I, DNA polymerase...
Mention the functions of this 5 enzymes found in E. coli: DNA polymerase I, DNA polymerase II, DNA polymerase III, DNA polymerase IV, DNA polymerase V.
16) Answer the following multiple-choice questions about genetics: Which activity of E. coli DNA polymerase I...
16) Answer the following multiple-choice questions about genetics: Which activity of E. coli DNA polymerase I is responsible for proofreading the newly synthesized DNA? A. 5' to 3' exonuclease B. 3' to 5' endonuclease C. 5' to 3' polymerase D. 3' to 5' exonuclease E. none of the above DNA sample A melts or denatures into two separate strands at a lower temperature than DNA sample B. Why is this so? A. sample A has greater G-C bp than sample...
Can someone describe the functions of DNA pol 1 and 3 in DNA replication? Include exonuclease...
Can someone describe the functions of DNA pol 1 and 3 in DNA replication? Include exonuclease activity info pls.
Which of the following properties of DNA polymerase necessitates the synthesis of Okazaki fragments for the...
Which of the following properties of DNA polymerase necessitates the synthesis of Okazaki fragments for the lagging strand A. Requirement for primers B. Exonuclease activity C. Ability to copy DNA template only in 3’ to 5’ direction D. Requirement for helicase to separate the DNA chains 8.During transamination amino groups of most amino acids are transferred to α-ketoglutarate to form which amino acid? A.Leucine B.Glutamate C.Alanine D.Aspartate
In the polymerase chain reaction, DNA is heated to 95 degrees Celsius and nucleotides, enzymes and...
In the polymerase chain reaction, DNA is heated to 95 degrees Celsius and nucleotides, enzymes and DNA primers are added to the mixture. Why are DNA primers added during the polymerase chain reaction?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT