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What Unwinds the DNA strand and breaks the hydrogen bonds between nucleotides in preparation for replication?
Wiki User
∙ 12y ago
The initiation complex makes a small gap for a helicase enzyme to bind. It is the helicase the 'undwinds' the DNA for most of replication.
In E. coli, for example, DnaA protein binds DNA to make a small gap between the two DNA strands, where DnaB enzyme (a helicase) can bind to the lagging strand (the one that is copied in fragments). From there, DnaB unwinds the DNA ahead of the polymerase enzyme.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe Helicase Enzyme.
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Prince Alkhatib
Wiki User
∙ 13y agoThe short Answer is: It's co-factors.
Wiki User
∙ 12y agoThe enzyme helicase.
Wiki User
∙ 12y agoHelicase
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Which enzyme unwinds DNA to initiate replication?
Helicase
Do enzymes unwind the two strands of the parent DNA double helix during DNA replication?
Several enzymes participate in DNA replication, one being helicase which unwinds the two nucleotide strands.Binding proteins stabilize the single stranded DNA and DNA polymerase attach the free nucleotides to the growing strand. The DNA ligases seal the short stretches of nucleotides into one continuous strand
What molecule unwinds DNA?
A replication bubble.
How are copies of DNA made?
DNA is copied by breaking the hydrogen bonds keeping it together, separating itself into two complimentary strands. Lone base pairs in the nucleus attach to the now single stranded DNA, creating two identical strands of DNA.nnnlknlk A DNA molecule is copied in a process called DNA replication. During DNA replication, the enzyme helicase separates the two strands of DNA nucleotides. The nitrogen bases of the two strands of DNA nucleotides are exposed, and the enzyme DNA polymerase causes new DNA nucleotides to pair with the original, exposed nucleotides according to the base-pairing rule. The result is two identical DNA molecules, each having a new strand of DNA nucleotides, and an original strand of DNA nucleotides. This kind of replication is called semi-conservative replication.
When DNA separates into two strands the DNA would most likely be directly involved in?
It would most likely be directly involved in replication.
What does the helicase enzyme do?
Helicase is an enzyme involved in DNA replication. It unwinds and unzips the parental DNA strand.
Which enzyme unwinds DNA to initiate replication?
Helicase
Do enzymes unwind the two strands of the parent DNA double helix during DNA replication?
Several enzymes participate in DNA replication, one being helicase which unwinds the two nucleotide strands.Binding proteins stabilize the single stranded DNA and DNA polymerase attach the free nucleotides to the growing strand. The DNA ligases seal the short stretches of nucleotides into one continuous strand
What 2 proteins are used during DNA replication?
The two proteins used during DNA replication are DNA polymerase and DNA helicase. DNA polymerase adds nucleotides to the growing DNA strand, while DNA helicase unwinds the double helix structure of DNA to expose the template strands for replication.
Would most likely happen if DNA polymerize were not functioning properly during DNA replication?
as helicase unwinds the double stranded DNA DNA polymerase is responsible for inserting the new coresponding nucleotides during replication and wihtout it the unwound DNA would remain single stranded.
What molecule unwinds DNA?
A replication bubble.
What part of the DNA molecule is unzipped?
The hydrogen bonds connecting the nucleotide bases are broken so right down the center is where is is split for DNA Replication or Transcription.
What job do the enzymes helicase play?
Helicase unwinds the DNA during replication.
Where does Helicase attach to on the DNA strand?
Enzyme helicase unwinds the DNA by breaking the bonds between nucleotides. Thus attaches itself at the nucleotides.
What is the function of DNA helicare in DNA replication?
DNA Helicase unwinds and unzips the DNA. It separates the two strands of DNA so DNA replication can occur.
DNA replication that unzip the DNA strand is?
What unzips DNA strand is a particular protein called Helicase. Helicase unwinds DNA's double helix at the replication fork.
How does topoisomerase affect the DNA strand during DNA replication?
The topoisomerase enzyme uncoils the double helical structure of DNA during its replication to form the replication fork. In eukaryotes both posive and negative supercoils get unbind by topoisomerase I & II respectively.Topoisomerase isomerase unwinds DNA to form replication fork
