Answer:
The number of chromosomes and genetic information is the same. A parent cell contains 2N, during DNA replication contains 4N, which is divided into 2 cells each containing 2N.
Step-by-step explanation:
Before the beginning of mitosos, the DNA is replicated in a process known as semi-conservative replication, where the DNA strands are separated and replicated to form two new DNA molecules. This method means the two new DNA molecules each contain a DNA strand from the original molecule (i.e. the original molecule is conserved).
The entire genome is replicated, and the chromosomes condense. Homologous chromosomes then pair up at the centre, and are separated when they are pulled to opposite poles of the cell. The nuclear envelope then reforms, and the cell divides, producing two daughter cells, each containing 2 copies of the genome, like the parental cell.