Most DNA is located in the cell nucleus, but a small amount of DNA can also be found in the mitochondria. Each cell nucleus contains 78 chromosomes.
Chromosomes
Inside the nucleus of every cell are structures called chromosomes, which are long threads of genetic material make up of strands of deoxyribonucleic acid.
DNA
DNA is a nucleic acid that contains all the information to determine who you are and what you look like.
