AP BIOLOGY

Detailed explanation-1: -In mitosis a cell divides to form two identical daughter cells. It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.

Detailed explanation-2: -It is important that the chromosomes are doubled before mitosis because each of the two resulting daughter cells must have the same amount of DNA as the parent cell. In the process of mitosis, one parent cell divides to make two genetically identical daughter cells that are also identical to the parent cell.

Detailed explanation-3: -When one cell divides into two, both must have a copy of the genetic information. Therefore, before cell division occurs, the genes must also make duplicates of themselves so that all of the important genetic information ends up in each of the new cells.

Detailed explanation-4: -For example, prior to undergoing meiosis, a cell goes through an interphase period in which it grows, replicates its chromosomes, and checks all of its systems to ensure that it is ready to divide. Like mitosis, meiosis also has distinct stages called prophase, metaphase, anaphase, and telophase.

Detailed explanation-5: -Cells will duplicate or copy their DNA right before they divide. The process of cell division is called mitosis. Since the cell is dividing it needs two copies of its DNA-one is kept by the parent cell and the other is passed to the daughter cell.