It could be cut for many reasons. When undergoing meiosis, DNA is cut to create novel gene arrangements on chromosomes. DNA can also be damaged by mutagens like UV light, and will be cut by certain enzymes to help in the repair on the DNA. In the lab, biologist cut DNA to insert genes, knock out genes, or to ensure that the gene is there. These are just a few reasons, but it is useful to cut DNA both in the lab and in the organism.
DNA is copied
In Interphase.
DNA Replication
DNA is copied in the cell nucleus. This process is called DNA replication and occurs during the S phase of the cell cycle.
Mitosis
DNA is copied
DNA is not copied during mitosis . Mitosis is meant for division of cell and DNA is divided in two daughter cells .
antisense
In Interphase.
DNA is copied once during the process of cell division.
DNA Replication
DNA replication
DNA is copied in the cell nucleus. This process is called DNA replication and occurs during the S phase of the cell cycle.
Mitosis
replication
no sorry
mRNA does not copy DNA, intead, mRNA is copied FROM DNR. The process is call translation.