DNA in eukaryotic cells is contained in the nucleus. The nucleus is a membrane-bound organelle that contains the cell's genetic material in the form of DNA. It is the control center of the cell, regulating gene expression and controlling the cell's activities. The DNA in the nucleus is organized into chromosomes, which are long strands of DNA wrapped around proteins called histones. Eukaryotic cells also have other organelles like lysosomes, Golgi bodies and central vacuoles, but none of them contain DNA.