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Why is it necessary that the cell copies it's DNA?

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2010-09-16 02:25:29
2010-09-16 02:25:29

cells must copy their DNA to replicate

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Copies of DNA do not leave the cell, they split, rebuild into two daughter copies, and then separate into opposite sides of the cell, which then divides. The DNA never passes the plasma membrane of the cell. Answer In vessicles.


False. Copies of DNA are only made at the time of cell division.




GENES OR DNA OR ITSELF


It is important for a cell to have two copies of DNA before it enters the division phase of mitosis because each new cell will require a copy of the DNA. The copies are shared between the divided cells.




Since viruses are nonliving they have to invade and hijack a living cells DNA to make more copies of itself. If it cannot do this it cannot make more copies of itself.


True.When a cells size increases,it can't transfer enough nutrients throughout the cell if the cell size is big.So it makes copies of its DNA


To reproduce and continue the species.


When a cell copies its DNA into the daughter cells with swag.


Before meiosis begins, the cell copies its DNA in the process of DNA replication.


As a cell increases in size, it usually does not make extra copies of DNA. If a cell were to grow without limit, an "information crisis" would occur.


as cell divides the DNA also hav to divide to b transfferd in to newly formed cell so for that DNA divides


The enzymes responsible for DNA replication create copies of existing DNA which become then part of the new cell created after mitosis.


The synthases phase of the cell cycle is where DNA replicates its self.


It is called a host cell. The virus attaches to the cell and injects its DNA into the cell. The virus's DNA overruns the "instructions" that the cell has and "tells" the cell to make copies of the virus using the DNA. Then the cell makes so many copies of the virus, that it explodes. The new viruses then go on to attach to other cells.


A virus injects its DNA into the host cell making it produce multiple copies of that DNA and multiple copies of the protein capsule of that virus. After a while, the host cell becomes full of many copies of that virus, then the host cell explodes releasing all the new viruses. If the host cell is a bacterium and the the virus is a bacterophage, this phenomenon is done in two ways either by the lytic cycle in which virus DNA survives and the bacterial cell is destroyed,or the lysogenic cycle in which virus DNA is incorporated in the host cell DNA.



In a cell division, you need exact copy of the original cell. DNA is the blue print of the cell. You have to produce two identical copies of the original DNA. Because DNA decides every character of the cell.


The process in which DNA is duplicated is called replication. The DNA replication occurs during the S phase of the cell cycle.


Cells tend to make mistakes copying nucleotides in the DNA.


DNA copies itself during the S phase of Interphase during mitosis. This is also when the cell manufactures proteins needed for DNA replication.


Each cell needs its own set of DNA. Mitosis occurs before a cell can divide so each cell can have its own nucleus, with its own DNA.



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