WHY do the chromosomes/DNA duplicate themselves?

Question

A. A cell needs to make a copy of its DNA so there is a second set of DNA to go into the new cell that's created during cell division.

B. A cell makes new DNA when the old DNA gets damaged

C. A cell needs two sets of DNA in order to do its job properly

Answer 1

The correct answer is:

A. A cell needs to make a copy of its DNA so there is a second set of DNA to go into the new cell that's created during cell division.

During cell division, particularly in processes like mitosis and meiosis, the DNA must be duplicated so that each daughter cell receives an identical set of chromosomes. This ensures that genetic information is accurately passed on to new cells.