Question

Formation of a replication fork results in: A. continuous synthesis of DNA on the lagging strand....

Formation of a replication fork results in:

  • A. continuous synthesis of DNA on the lagging strand.
  • B. supercoiling in the parental DNA ahead of the fork.
  • C. of new 3' -OH regions on the template DNA.
  • D. binding of SSB protein on the double-stranded parental DNA.
  • E. All of the above occur when the replication fork is formed.
Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

the replication fork is formed when double-stranded DNA melts and DNA synthesis occurs in both directions, that is in a replication bubble two replication forks are formed.

DNA synthesis is continuous in the leading strand and in the lagging strand DNA synthesis is discontinuous, DNA is synthesized as fragments.

SSB proteins bind to the single-stranded DNA formed during replication.

DNA synthesis occurs in 5` to 3` direction, and no new nucleotides are added to template DNA, new nucleotides are added complementary to the template strand.

Due to the unwinding of Double-stranded DNA, supercoiling occurs in the parental DNA ahead of the replication bubble.

B) super coiling in the parental DNA ahead of the 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
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...
Describe lagging strand synthesis during DNA replication.
Describe lagging strand synthesis during DNA replication.
Explain how the synthesis of the lagging strand occurs in DNA replication.
Explain how the synthesis of the lagging strand occurs in DNA replication.
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...
What is the reason for the difference in the synthesis of the leading and lagging strands...
What is the reason for the difference in the synthesis of the leading and lagging strands of DNA molecules?        A. DNA polymerase can join new nucleotides only to the 3' end of the growing strand.         B. One strand must be completely synthesized before synthesis of the next can begin.         C. Helicase and SSB proteins work only at the 5' end of the chromosome.         D. DNA ligase only works in the 3' to...
1) At replication fork, the DNA segment is kept as single strand DNA mainly due to...
1) At replication fork, the DNA segment is kept as single strand DNA mainly due to A) DAN Gyrase B) Single-strand binding proteins C) Helicase 2) The major reason that causes basal transcription is: A) there are transcription inhibitors B) only core promoter is involved in the transcription C) at the beginning of transcription 3. In bacteria, the RNA transcripts are made starting at: A) -35 site B) 0 site C) +1 site 4. Which of the following regions/sites of...
What is the funcional of the enzyme DNA polymerase in replication? A) It reads the sequence...
What is the funcional of the enzyme DNA polymerase in replication? A) It reads the sequence of nucleotides on the parental strand of DNA and catalyzes the polymerization of a complementary daughter DNA strand. B) Its reads codond on a DNA molecule and catalyzes the polymerization of a complementary mRNA strand, C) It unwinds the double helix of DNA and separetes the two strand. D) It connects the short Okazaki fragments formed in the lagging strand. E) It carries the...
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...
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. What is the reason for the difference in the synthesis of the leading and lagging...
1. What is the reason for the difference in the synthesis of the leading and lagging strands of DNA molecules?        A.DNA polymerase can join new nucleotides only to the 3' end of the growing strand.         B. One strand must be completely synthesized before synthesis of the next can begin.         C. Helicase and SSB proteins work only at the 5' end of the chromosome.         D. DNA ligase only works in the 3' to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT