To make new cells, humans undergo a process of cell division called mitosis. before a cell goes through cell division (mitosis), which process must be carried out by the genetic material ?

Before a cell goes through cell division (mitosis), it must grow and make a copy of its DNA which is termed as an Inter-phase.

Explanation:

Some tasks must be carried out by the cells before they undergo division: The cell must grow, it must copy the genetic material (DNA) present in it, and  divide into two daughter cells. These steps carried out by cells are termed as  cell cycle.

Cells that contains a nucleus or Eukaryota cells, there are two major phases called interphase and the mitotic (M) phase. that comprises the cell cycle.

In  inter-phase, growth of the cell and making a copy of its DNA is carried out.

In mitotic (M) phase, the cell separation of the DNA in the cell into two sets and division of its cytoplasm takes place resulting in the formation of two new cells.