Question

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?

Homework Answers

Answer #1

1st enzyme is DNA helicase. It unbind the helical structure of DNA & uncoil it.

2nd enzyme is DNA dependent DNA polymerase enzyme. It is responsible for formation of new template strand with the help of base pairs in 5'-3' direction of coding strand.

3rd enzyme is DNA topoisomerase.

DNA topoisomerases are enzymes that participate in the overwinding or underwinding of DNA. The winding problem of DNA arises due to the intertwined nature of its double-helical structure.

4th enzyme is DNA ligase. It ligates the discontinues DNA frangments known as Okazaki fragments.

DNA replication is discontinuous because the lagging strand needs to be replicated in the opposite direction of the way the replication fork is proceeding. and DNA polymerase can proceed only 5' to 3'.

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
Identify each of the enzymes involved in DNA replication and whether they are used during synthesis...
Identify each of the enzymes involved in DNA replication and whether they are used during synthesis of the leading strand, lagging strand, or both. And briefly explain their function during DNA replication. Enzymes: DNA Polymerases I and III, Topoisomerase, Helicase, Ligase, SSBPs
What are the limitations of the DNA polymerase lll enzyme involved in DNA replication and describe...
What are the limitations of the DNA polymerase lll enzyme involved in DNA replication and describe how this affects the synthesis of the two strands of DNA
Messelson and Stahl, determined that when DNA replication is completed, a)each new DNA double helix consists...
Messelson and Stahl, determined that when DNA replication is completed, a)each new DNA double helix consists of one old DNA strand and one new DNA strand b)each of the four DNA strands consists of some old strand parts and some new strand part one DNA double helix consists of two old strands and one DNA double helix consists of two new strands The Meselson-Stahl experiment was designed to answer which question? How does DNA replicate? What does the secondary structure...
List 3 enzymes involved in DNA replication that get used MORE in building of the lagging...
List 3 enzymes involved in DNA replication that get used MORE in building of the lagging strand (as compared to that of the leading strand). Describe why. Describe how DNA replication is carried out on the lagging strand.
DNA Replication 1. Define DNA replication. 2. What is the role of base pairing in DNA...
DNA Replication 1. Define DNA replication. 2. What is the role of base pairing in DNA replication? Would this process of replication be possible without base pairing? 3. Describe the process of semi-conservative DNA replication. 4. Describe the experiment that led to the discovery that DNA was replicated through a semi-conservative process. 5. Define replication origins. 6. Why is the specific sequence of the replication origin relevant to DNA replication? 7. Describe the process of DNA replication, including the enzymes...
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...
• Telomerase – o Describe how a telomere (DNA double helix) is synthesized during replication. Be...
• Telomerase – o Describe how a telomere (DNA double helix) is synthesized during replication. Be sure to mention all of the enzymes involved in this process. o What role do telomere duplex DNA-binding proteins and telomere repeat binding factors (TRF proteins) in the formation of the final structure of the telomere? o What type of DNA polymerase is telomerase?
1.What is the role of telomerase in DNA replication? a) join Okazaki fragments together b) synthesize...
1.What is the role of telomerase in DNA replication? a) join Okazaki fragments together b) synthesize RNA nucleotides to make a primer c) catalyze the lengthening of the ends of linear chromosomes d) are part of the initiation of replication at the origin of replication 2. RNA polymerase for mRNA transcription and DNA polymerase in replication differ in that a) RNA polymerase uses RNA as a template, and DNA polymerase uses a DNA template. b) RNA polymerase does not need...
Restriction enzymes, also known as restriction endonucleases, are enzymes that cut a DNA molecule at a...
Restriction enzymes, also known as restriction endonucleases, are enzymes that cut a DNA molecule at a particular place. They are essential tools for recombinant DNA technology. The enzyme "scans" a DNA molecule, looking for a particular sequence, usually of four to six nucleotides. Once it finds this recognition sequence, it stops and cuts the strands. This is known as enzyme digestion. On double stranded DNA the recognition sequence is on both strands, but runs in opposite directions. This allows the...
ANSWER KEY Recombinant DNA Anticodon Mutation Uracil Codon Replication tRNA Thymine Antiparallel Translation Transcription Polymerase Chain...
ANSWER KEY Recombinant DNA Anticodon Mutation Uracil Codon Replication tRNA Thymine Antiparallel Translation Transcription Polymerase Chain Reaction Match the correct answer with the corresponding statement. A base found in RNA but not DNA A base found in DNA but not RNA The opposite directions run by two strands of DNA double helix Protein synthesis When mRNA is synthesized from DNA When a strand of DNA makes a new copy prior to cell division The RNA that carries amino acids to...