What is the primary function of dna replication in adult human somatic cells?

The primary function of DNA replication in adult human somatic cells is to produce similar copies for the proper growth of the body.

Explanation:

Somatic cells are any cells of the body of an organism that are not;

gametes such as sperm and egg cells the cells from which these gametes are produced undifferentiated stem cells

For instance, cells of inner organs, skin, blood, bones, etc.

The goal or the primary function of DNA replication is to create two identical copies of a DNA molecule.

In adult human somatic cells, this is primarily necessary for cell division throughout the growth and repair of damaged tissues in the body. DNA replication assures that each new cell receives its own copy of the DNA to form cells that are similar to the parent cells.