The nucleus.
In a eukaryotic cell, the nucleus is more or less spherical, and surrounded by a double membrane perforated by pores that allow large molecules through. Inside the nucleus are the chromosomes, each of which has either one or (after DNA replication) two molecules of DNA.
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the nucleus
the nucleus
the nucleus
The cell nucleus is the structure that contains most of an organism's DNA.
DNA
DNA, Deoxyribonucleic Acid (DNA) is the chemical that contains the code for the cells structure and activities.
Nucleus.
Chromosomes are the structures in the nucleus that contain DNA.
DNA
nucleus
chromosome