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What 2 things happen to DNA strand before DNA can be replicated helicase cause?
Wiki User
∙ 14y ago
Before replication can begin, the following two molecular processes occur:
- Helicase binds to DNA
- Helicase causes the complimentary strands to separate by breaking the hydrogen bonds between the nucleotide bases, causing the replication bubble to form.
Wiki User
∙ 14y ago
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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.
The enzyme amylase un zips or winds the DNA strand?
The enzyme helicase unzips the DNA strand not amylase.
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 does semi conservative mean regard to DNA replication?
replicated DNA is made of one old strand and one new strand.
What holds DNA strands apart during replication?
What prevents the wrong nucleotide from being added to the new strand during DNA replication? DNA polymerase 3 and DNA polymerase 1 can become what is known as exonucleases. an exonuclease can go back and "proofread" the replicated DNA and if there is a mistake, then everything beyond that incorrect nucleotide is removed and the DNA polymerase 3 will re-replicate from the bad point on. the protein p53 holds the cell in the G1 and S phase of replication which allows more time for proof reading the replicated DNA
What must happen to a DNA molecule before RNA ploymerase can make RNA?
The double strand helix is opened by enzymes called helicase and this allow the RNA polymerase to copy the DNA strand. The double strand helix is opened by enzymes called helicase and this allow the RNA polymerase to copy the DNA strand.
What binds to the DNA strand and separates it?
helicase enzyme
Does helicase catalyze the elongation of a new DNA strand?
No.
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.
The enzyme amylase un zips or winds the DNA strand?
The enzyme helicase unzips the DNA strand not amylase.
What unwinds in multipule areas as dns is replicated?
The lagging strand. It is replicated in Okazaki fragments.
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.
When a strand of DNA is ATCG what would the complementary pairings be for the replicated strand of DNA?
TAGC.
What does semi conservative mean regard to DNA replication?
replicated DNA is made of one old strand and one new strand.
What elongates as DNA unwinds and is replicated continuously?
Leading strand
What holds DNA strands apart during replication?
What prevents the wrong nucleotide from being added to the new strand during DNA replication? DNA polymerase 3 and DNA polymerase 1 can become what is known as exonucleases. an exonuclease can go back and "proofread" the replicated DNA and if there is a mistake, then everything beyond that incorrect nucleotide is removed and the DNA polymerase 3 will re-replicate from the bad point on. the protein p53 holds the cell in the G1 and S phase of replication which allows more time for proof reading the replicated DNA
What does the helicase enzyme do?
Helicase is an enzyme involved in DNA replication. It unwinds and unzips the parental DNA strand.
