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Q: How does replication start Who prevents the unwound DNA for twisting back?
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What is meant by ori region in a plasmid?

A site where the Dna replication is initiated. As to start replication ......


Produces The RNA primer required for DNA replication to begin?

the chemical primase produces the rna primer to start DNA replication. the primase is later removed and replaced with DNA by a repair polymerase


Does DNA replication start at only one place in the DNA?

What do you mean by one area? If by one area you mean does it start at one area then stop and continue on another area then no, DNA replication is continuous and when it takes place it is the most important thing going on in the cell. The cells resources are directed at this process * DNA replication means copying the entire DNA molecule, so it involves the entire molecule, but not all at the same time. In bacteria (prokaryotic cells) replication begins at one point in the molecule and continues all the way round the circular molecule.Beginning at just one place would take too long in eukaryotic cells; someone has calculated that our longest chromosomes would take about a fortnight to replicate, and we cannot wait that long! So replication begins at a number of sites along the length of the DNA molecule. At each replication site, as the DNA strands are separated there is a bulge in the molecule called a replication bubble. As replication proceeds these bubbles become longer, and eventually they merge into one another and the job is done.


What happens first at each origin of a replication?

The enzyme that catalyzes DNA replication is DNA Polymerase. ... This enzyme first binds to a specific site on the DNA known as the origin of ... a single origin on their chromosome while eukaryotes have several on each of ... This is similar to what happens when your coiled telephone cord gets overwound and forms knots.


What separates DNA strands when DNA copies itself?

Topoisomerase is the enzyme that unwinds the DNA during replication. It binds to the DNA, and separates the double strands and form a replication fork. After which the primer bind to the start site, and DNA polymerase starts DNA synthesis.

Related questions

What is meant by ori region in a plasmid?

A site where the Dna replication is initiated. As to start replication ......


I offered should I twist my dreads?

twisting dreads to start them is fine.once they hold together, stop twisting.


What binds to the prokaryotic chromosome to start DNA replication?

Regulatory proteins bind to the prokaryotic chromosomes to start DNA replication.


What are the areas on DNA where replication occurs called?

DNA replication begins in areas of DNA molecules are called origins of replication.


How does a ripstick accelerate?

The skateboard goes faster if the skateboards wheels are good and fast than the skateboard will go faster than a ripstick.


What is the time between the end of cell division and the start of DNA replication?

yup!


True or false replication start at one end of DNA molecule and proceeds to the other end?

False: DNA replication starts at origins of replication which can be anywhere on the DNA molecule. Replication is taking place at multiple origins at the same time.


How does DNA replication differ in prokaryotes and eukaryotes?

1. In eukaryotic cells replication forks make several start sites along the DNA strand which forms replication "bubbles" which get larger the more DNA is copied, and stop when DNA replication is complete. In prokaryotic cell's DNA is formed in a loop, two replication forks start along one part of the loop (origin replication) and the replication forks copy DNA in opposite directions until they meet at the other side of the loop, making an exact copy of DNA.


Produces The RNA primer required for DNA replication to begin?

the chemical primase produces the rna primer to start DNA replication. the primase is later removed and replaced with DNA by a repair polymerase


What is a neutral start switch?

It is the mechanism that prevents your vehicle to start out of gear, other than park or neutral.


What is neutral start switch?

It is the mechanism that prevents your vehicle to start out of gear, other than park or neutral.


What is a force that prevents the start of any movement between surfaces in contact?

Friction.