Question

Explain why it is important for daughter cells to have a full set of chromosomes

Answer 1

If the daughter cell doesn't have a full set of chromosomes, the cell cycle can't be performed since there needs to be an equal and sufficient amount of chromosomes given to each cell.

Answer 2

Let's pretend you have 6 pencils and two friends; each person wants two pencils. By some mythical, magical force, two of your pencils are gone. Are you able to satisfy everyone's needs? No, you aren't. It's the same case here, essentially.