DNA is copied in the S-Phase of cellular division through a process known as mitosis. It does so by duplicating each chromosome in anticiaption of cell division.
DNA is copied
DNA is not copied during mitosis . Mitosis is meant for division of cell and DNA is divided in two daughter cells .
During cell division.
DNA
Centrioles, nuclear envelope, and chromatin. These answers came from a Biology book, no lie.
Tickle itself
DNA is duplicated in the S phase because in the G1 phase the cell is growing and not yet ready to divide, then DNA copies as the first step for when it is getting ready to divide. In the G2 phase the cell continues to get ready to divide once the DNA is copied.
douaghter cells
Because for every cell there are many mitochondria within it so for the daughter cell to have the same amount of mitochondria all their DNA must be copied. but there is only one set of DNA within the nucleus of the cell for the cell itself so that only needs to be copied once. if that makes any sense?
DNA replication is the process in which the DNA is copied prior to mitosis. It's purpose is to prepare the cell for mitosis, which is the division of the nucleus into two identical daughter nuclei, usually followed by cytokinesis, the division of the cytoplasm.
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.
DNA must be copied before cell division so that one complete copy of each chromosome ends up in each of the two daughter cells. Otherwise only one cell would end up with DNA, making the other cell.. well.. not a cell.