Question

The bacterial DNA Gyrase is a_____________ type II topoisomerase that relives the strain of the supercoiled...

The bacterial DNA Gyrase is a_____________

type II topoisomerase that relives the strain of the supercoiled DNA at the replication fork.

type II topoisomerase that unwind the two DNA strands from each other to allow DNA replication

type I topoisomerase that relives the strain of the supercoiled DNA ahead of the replication fork.

type II topoisomerase that relives the strain of the supercoiled DNA and is localized at the replication fork.

type II topoisomerase that relives the strain of the supercoiled DNA an is localized ahead of the replication fork.
Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

DNA gyrase is a toposiomerase 2 enzyme. It makes a transient double stranded break in the ahead of replication fork. This leads to break the helix and forma a covalent linkage to both strands. It removes the strain from the double stranded DNA which is created by the supercoiling in DNA during their unwinding. That's why most appropriate answer is:

type II topoisomerase that relives the strain of the supercoiled DNA an is localized ahead of the replication fork.

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
1. This enzyme replaces RNA primers with a compatible DNA segment. RNA Primase DNA Polymerase III...
1. This enzyme replaces RNA primers with a compatible DNA segment. RNA Primase DNA Polymerase III Topoisomerase DNA Polymerase I 2. This class of enzymes prevent DNA molecules from damaging themselves by relieving strain, untangling, cutting and rejoining strands. They will ride ahead of the replication fork preventing over-winding. Helicase DNA Ligase Topoisomerase RNA polymerase 3. This type of molecule prevents the two separated strands of DNA in a replication bubble from re-establishing their hydrogen bonds ("reannealing"). DNA Polymerase III...
topoisomerase has what function? _______ A) elongation of DNA at a replication fork by adding nucleotides...
topoisomerase has what function? _______ A) elongation of DNA at a replication fork by adding nucleotides to the existing chain B) unwinding of the double helix C) relieving strain in the DNA ahead of the rep fork D) stabilizing single stranded DNA at the Rep.fork E) addition of methyl groups to bases of DNA Explain why C is correct and why the other choices are incorrect as well as mention the names of the enzymes for the indicated function
1. Incubating a competent strain of Escherichia coli with DNA in the form of a plasmid...
1. Incubating a competent strain of Escherichia coli with DNA in the form of a plasmid could lead to: Group of answer choices A. Transformation B. Conjugation C. Transduction D. Vertical gene transfer 2. During DNA replication the lagging strand is synthesized: Group of answer choices A. Continuously B. In Okazaki fragments C. In the same direction as the advancing replication fork D. From 3' to 5' 3. Which enzyme is responsible for linking Okazaki fragments in a newly created...
A completely relaxed 500 bp circular DNA molecule has linking number (L)= 50. DNA gyrase, a...
A completely relaxed 500 bp circular DNA molecule has linking number (L)= 50. DNA gyrase, a type II topoisomerase, hydrolyzes two molecules of ATP while adding left-handed supercoils to this molecule. What is the linking number after this occurs? A) 46 B) 48 C) 52 D) 54 Please explain
Name four (4) enzymes that are involved in the replication of the bacterial DNA? For each...
Name four (4) enzymes that are involved in the replication of the bacterial DNA? For each one, briefly describe what it does. Why is the synthesis of new DNA continuous only on one of the two strands of the double helix?
Put the steps of initiation of DNA replication in their correct sequence.       -   ...
Put the steps of initiation of DNA replication in their correct sequence.       -       1.       2.       3.       4.       5.       DNA polymerase catalyzes the synthesis of new DNA by adding deoxyribonucleotides, beginning by attaching the first to the 3' hydroxyl (-OH) of the last ribonucleotide in the primer.       -       1.       2.       3.       4.       5.      ...
7. DNA synthesis involves the polymerization of nucleotides into polynucleotide chains. In this concern answer the...
7. DNA synthesis involves the polymerization of nucleotides into polynucleotide chains. In this concern answer the following questions      a. Define and indicate the significance of ; i. Okazaki fragments, ii. DNA ligase, and iii. RNA primer during DNA replication. b. Several temperature-sensitive mutant strains of E. coli display the following characteristics. Predict what enzyme or function is being affected by each mutation. i. Newly synthesized DNA contains many mismatched base pairs. ii. Okazaki fragments accumulate, and DNA synthesis is...
Which of the following statements about DNA synthesis at the replication fork of a replicating DNA...
Which of the following statements about DNA synthesis at the replication fork of a replicating DNA molecule is FALSE? Select one: a. One of the two new strands must be synthesized in fragments because the two strands have opposite directionality. b. More than one of the other answer choices is false. c. The sequence of each newly synthesized single strand is identical to that of the parental single strand that served as its template. d. Double-stranded DNA synthesis requires both...
The prokaryotic replication enzyme that removes and replaces primers is _______. a. ligase b. DNA polymerase...
The prokaryotic replication enzyme that removes and replaces primers is _______. a. ligase b. DNA polymerase I c. primase d. DNA polymerase II Primers are found on: a. only Okazaki fragments. b. both the leading and lagging strands. c. only the leading strand. d. only the lagging strand. e. DNA polymerase III. Which replication enzyme seals the nicks between Okazaki fragments? a. Primase b. DNA polymerase I c. DNA LIgase d. Topoisomerase The first step in the replication of DNA...
QUESTION 1 * Compared to the leading strand, the lagging strand requires ________ primers.?? A. more...
QUESTION 1 * Compared to the leading strand, the lagging strand requires ________ primers.?? A. more B. the same number of C. less QUESTION 2 * Which enzyme synthesizes the majority of the DNA polymer for both the leading and lagging strands??? A. DNA polymerase I B. primase C. DNA polymerase III D. helicase QUESTION 3 * For each origin of replication, how many DNA polymerase III enzymes are needed??? A. 1 B. 8 C. 4 D. 2 QUESTION 4...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT