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What is least Related to the others on this list okazaki fragments replication fork telomerase DNA polymerase semiconservative model?
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∙ 12y ago
Telomerase
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∙ 12y ago
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Two major enzymes used during DNA replication?
The two main ones are DNA-polymerase and helicase
What enzyme builds new DNA strands from existing strands during DNA replication?
DNA Polymerase III is responsible for adding new nucleotides to the strand being synthesised. Also involved in DNA replication are DNA Polymerase I which replaces primers with nucleotides, and DNA Ligase which joins fragments of DNA together.
What are the 4 enzymes in DNA replication?
DNA Helicase - responsible for separating the two stands DNA Polymerase - responsible for catalyzing the addition of bases to the new strand DNA Ligase - responsible for sealing fragments
What are the short segments produced in the formation of the 3'-5' strand of DNA called?
During DNA replication, the lagging strand is replicated ~1000 (E. coli) base pairs at a time, forming numerous "Okazaki fragments".Okazaki fragments form because polymerase is only able to replicate DNA in one direction, but DNA is double stranded, with the strands running anti parallel (in opposite directions). The polymerase waits for a region of DNA to be unwound, and while the leading strand is replicated continuously, on the lagging strand the polymerase waits until a region of single stranded DNA is produced before replicating it. This discontinous replication forms the Okazaki fragments, which can then be joined together by ligase (although a different polymerase enzyme, pol I in E. coli, is needed as well to replace the RNA primers with DNA).
What is the function of DNA ligase in DNA replication?
it ties the chunks of dna together
Two major enzymes used during DNA replication?
The two main ones are DNA-polymerase and helicase
What enzyme builds new DNA strands from existing strands during DNA replication?
DNA Polymerase III is responsible for adding new nucleotides to the strand being synthesised. Also involved in DNA replication are DNA Polymerase I which replaces primers with nucleotides, and DNA Ligase which joins fragments of DNA together.
How does DNA polymerase function in DNA replication?
DNA Polymerase III is responsible for adding new nucleotides to the strand being created. DNA Polymerase I replaces the primers with DNA nucleotides. The fragments are then joined together by ligase, and a new strand has been created.
What is the primase and its function?
Primase in the DNA-dependent RNA polymerase enzyme that functions in DNA replication by synthesizing the RNA primers which are then extended by DNA polymerase to yield newly synthesized DNA fragments. While being an RNA polymerase, primase is different from the RNA polymerase that functions in the transcription of DNA.
What are the 4 enzymes in DNA replication?
DNA Helicase - responsible for separating the two stands DNA Polymerase - responsible for catalyzing the addition of bases to the new strand DNA Ligase - responsible for sealing fragments
What does ran polymerase do?
Polymerise dna fragments
The enzyme that copies DNA is called?
There is no single enzyme responsible for DNA duplication. But the most important ones are:Helicase: it unwinds the DNA helixRNA polymerase: adds the RNA primerDNA polymerase: adds the complementary strand of DNALigase: attaches the DNA fragments together
What are the special enzymes of DNA replication?
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!
What are the short segments produced in the formation of the 3'-5' strand of DNA called?
During DNA replication, the lagging strand is replicated ~1000 (E. coli) base pairs at a time, forming numerous "Okazaki fragments".Okazaki fragments form because polymerase is only able to replicate DNA in one direction, but DNA is double stranded, with the strands running anti parallel (in opposite directions). The polymerase waits for a region of DNA to be unwound, and while the leading strand is replicated continuously, on the lagging strand the polymerase waits until a region of single stranded DNA is produced before replicating it. This discontinous replication forms the Okazaki fragments, which can then be joined together by ligase (although a different polymerase enzyme, pol I in E. coli, is needed as well to replace the RNA primers with DNA).
Okazaki fragments are joined together by?
During DNA replication Okazaki fragments are joined together by DNA polymerase. Remember that Okazaki fragments start with an RNA primer so RNAse H is need to remove the primer follwed by DNA plymerase to add nucleotides and finally DNA ligase to seal the single strand nick.
What is the function of DNA ligase in DNA replication?
it ties the chunks of dna together
What are the fragments making up the noncontinuous strand called?
If you are referring to the fragmented lagging strand for DNA replication, the fragments are called Okazaki fragments.
