The genetic code of the cell is located in the nucleus, and in eukaryotes it is arranged as linear DNA molecules rather than circular ones.
What is a nucleus ?
- In terms of genomics, a nucleus is the organelle within a cell that is membrane-enclosed and houses the chromosomes. The nuclear membrane contains a variety of pores that allow specific chemicals to enter and exit the nucleus in different ways.
- The nucleus carries the genes, which are the structures that house the hereditary information, and governs and regulates the functions of the cell. Small structures called nucleoli are frequently detected inside the nucleus. The nucleoplasm is the gel-like matrix in which the nuclear parts are suspended.
- The chromosomes are all kept inside the nucleus by a membrane, which also distinguishes between the chromosomes being inside the nucleus and the other organelles and parts of the cell remaining outside.
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