A cell can make mistakes when it copies what in its DNA?
Cells tend to make mistakes copying nucleotides in the DNA.
A cell does not make "extra copies" of DNA. Through a persons life, DNA can only be copied so many times. The only time DNA does "copy itself" would be if a new cell is needed. For example, your skin cells die all the time and are shedded off from your skins surface. Your skin then is going to get to the point where more cells are going to be made. The DNA replicating process…
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.
Why is it important for a cell to have two copies of DNA before it enters the division phase mitosis?
A cell makes copies of its DNA before it divides to pass on it's genetic information to the new cell. The parent cell needs to keep a DNA copy for itself to continue to replicate and adapt. That's right, all is not set in stone. Research shows DNA is adaptive, too. It responds to the environment, available food supplies, etc.
DNA cloning is where you take a piece of DNA and put it in a host cell so that every time the host cell replicates, its daughter cells will have that exact copy of DNA. DNA amplification is just taking a piece of DNA and making copies of it, like in the process of PCR. it is not inside a host cell. another way to think of it: you can amplify a gene--make a bunch…
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…
DNA replication results in two identical copies of each chromosome. There needs to be two copies of each chromosome so that at the end of mitosis each daughter cell has the exact same number and types of chromosomes as the original cell. In other words, the daughter cells must have the exact same DNA as the original cell so that each cell has the instructions for carrying out cellular functions.
DNA replication results in two identical copies of each chromosome. There needs to be two copies of each chromosome so that at the end of mitosis each daughter cell has the exact same number and types of chromosomes as the original cell. In other words, the daughter cells must have the exact same DNA as the original cell so that they have the instructions for carrying out cellular functions properly.