Final answer:
The nucleus is a membrane-bound organelle that stores genetic material and regulates gene expression in eukaryotic cells.
Step-by-step explanation:
The nucleus is a membrane-bound organelle found in eukaryotic cells. It contains the cell's genetic material, including the DNA and proteins that make up the chromosomes. The main function of the nucleus is to control gene expression and regulate cell activities.
**Genetic material**: The nucleus stores the DNA and proteins that carry genetic information, which is essential for the functioning and survival of the cell. In this way, the nucleus is responsible for passing on hereditary traits from one generation to the next.
**Gene expression regulation**: The nucleus is involved in the process of gene expression, which determines how the genetic information is used to produce proteins and perform specific functions in the cell. It regulates this process by controlling the transcription and translation of genes.
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