Question

why does dna have to be packaged tightly into chromosomes?
the dna needs to fit inside the nucleus.
it helps when the cell needs to do mitosis.
all of these are reasons dna is packaged in chromosomes!
a cell has lots of dna.

Explanation:

DNA is extremely long. A cell has a large amount of it. Packaging it tightly into chromosomes allows it to fit inside the small - sized nucleus. Also, during cell division like mitosis, the organized structure of chromosomes helps in the proper segregation and distribution of genetic material.

Answer:

All of these are reasons DNA is packaged in chromosomes