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The main enzymes involved in DNA replication are:
Helicase: unwinds the double helix into two strands
Polymerase: adds nucleotides to an existing strand
Ligase: brings together the Okazaki fragments
Topoisomerase: cuts and rejoins the helix
RNA primase: catalyzes the synthesis of RNA primers
Hope this helps!
The special enzymes involved in DNA replication include DNA polymerase, which is responsible for synthesizing new DNA strands; DNA helicase, which unwinds the DNA double helix; DNA primase, which synthesizes RNA primers to initiate DNA synthesis; and DNA ligase, which seals the nicks in the newly synthesized DNA strands. These enzymes work together to ensure accurate and efficient replication of the genetic material.
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What enzymes produced a new DNA strand during DNA replication?
DNA Polymerase
Is DNA oxidase responsible for replication of DNA?
No, DNA oxidase is not responsible for the replication of DNA. DNA polymerase is the enzyme responsible for synthesizing new DNA strands during replication. DNA oxidase, on the other hand, is involved in repairing oxidative damage to DNA.
Explain the two roles that enzymes play in DNA replication as is illustared infigure 9 in this section?
Enzymes involved in DNA replication play the roles of helicase and DNA polymerase. Helicase unwinds the DNA double helix, creating the replication fork, while DNA polymerase synthesizes new DNA strands by adding complementary nucleotides to the template strands. These enzymes work together to ensure accurate and efficient replication of the genetic material.
What catalyzes DNA synthesis?
DNA synthesis is catalyzed by enzymes called DNA polymerases. These enzymes are responsible for assembling new DNA strands by adding nucleotides to the growing chain during DNA replication.
The process of DNA replication is completely controlled by what?
The process of DNA replication is controlled by various enzymes and proteins. Key players include DNA polymerase, helicase, and ligase. These enzymes work together to unwind the DNA double helix, separate the strands, and create new complementary strands.
DNA replication occurs with or without the aid of enzymes?
DNA replication requires the aid of enzymes. Enzymes like DNA polymerase and helicase are crucial for unwinding the DNA double helix, synthesizing new DNA strands, and proofreading and repairing any errors that may occur during replication. Without these enzymes, DNA replication cannot proceed effectively and accurately.
What enzymes produced a new DNA strand during DNA replication?
DNA Polymerase
Inhibitors of DNA replication?
Inhibitors of DNA replication include drugs like Ciprofloxacin and Doxorubicin, which interfere with the enzymes involved in DNA synthesis. These inhibitors disrupt the process of replication by blocking DNA polymerase or topoisomerase enzymes, preventing proper DNA synthesis and cell division. This can be used in cancer therapy to inhibit cell proliferation.
What is DNA replication is performed by?
DNA replication is performed by a group of enzymes known as DNA polymerases. These enzymes are responsible for synthesizing new DNA strands by adding nucleotides in a complementary fashion to the existing DNA template. Other proteins are also involved in DNA replication to help unwind the double helix, stabilize the replication fork, and proofread the newly synthesized DNA.
Why DNA replication is popularly known as enzyme dependent?
DNA replication is enzyme-dependent because enzymes are required to carry out the process. Enzymes such as DNA polymerase, helicase, and ligase are essential for unwinding the DNA double helix, synthesizing new DNA strands, and joining the fragments together. These enzymes ensure the accurate and efficient replication of DNA.
What controls DNA replication?
DNA replication is controlled by specific enzymes, such as DNA polymerase, helicase, and primase, along with other regulatory proteins. The process is tightly regulated at different checkpoints to ensure accurate copying of the genetic material. Additionally, the initiation of DNA replication requires specific sequences called origins of replication.
Why are enzymes important to the DNA replication?
Enzymes are essential for DNA replication because they facilitate the unwinding of the DNA double helix, the synthesis of new complementary strands, and the proofreading and repair of any errors that occur during replication. They also help regulate the process to ensure accurate and efficient copying of the genetic material.
What is it called when DNA separate into two strands?
DNA Replication by enzymes that copy DNA for chromosomes in the new cell after cell division (mitosis)
What happenes first at each origin of replication?
Enzymes unwind DNA!
What are enzymes that have a proofreading role in DNA replication?
DNA polymerases, such as DNA polymerase III in prokaryotes and DNA polymerase delta in eukaryotes, have proofreading activities during DNA replication. These enzymes possess exonuclease activity, allowing them to detect and correct errors in newly synthesized DNA strands by removing misincorporated nucleotides. This proofreading function helps maintain the fidelity of DNA replication.
Which of the following check DNA for errors?
The correct answer is "Proofreading enzymes." Proofreading enzymes help to identify and correct errors in DNA replication, ensuring accuracy in the DNA sequence.
Is DNA oxidase responsible for replication of DNA?
No, DNA oxidase is not responsible for the replication of DNA. DNA polymerase is the enzyme responsible for synthesizing new DNA strands during replication. DNA oxidase, on the other hand, is involved in repairing oxidative damage to DNA.
