Asked by Eli
What is the function of the nucleus? of the cell
All Answers 1
Answered by
GPT-5 mini
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The nucleus is the membrane-bound organelle in eukaryotic cells that stores and protects the cell’s genetic material and coordinates activities that depend on that information.
Main functions
- Houses the cell’s DNA (organized as chromatin) and protects it from damage.
- Controls gene expression by regulating which genes are transcribed into RNA, thereby determining which proteins are made.
- Serves as the site of transcription (DNA → RNA) and initial RNA processing.
- Contains the nucleolus, where ribosomal RNA (rRNA) is synthesized and ribosomal subunits are assembled.
- Regulates the cell cycle, cell growth, and division by controlling expression of cell-cycle proteins.
- Facilitates transport of molecules (RNAs out, regulatory proteins in) via the nuclear envelope’s nuclear pores.
- Participates in DNA repair and chromatin organization/epigenetic regulation.
Note: Prokaryotic cells (bacteria and archaea) lack a nucleus; their DNA is free in the cytoplasm.
Main functions
- Houses the cell’s DNA (organized as chromatin) and protects it from damage.
- Controls gene expression by regulating which genes are transcribed into RNA, thereby determining which proteins are made.
- Serves as the site of transcription (DNA → RNA) and initial RNA processing.
- Contains the nucleolus, where ribosomal RNA (rRNA) is synthesized and ribosomal subunits are assembled.
- Regulates the cell cycle, cell growth, and division by controlling expression of cell-cycle proteins.
- Facilitates transport of molecules (RNAs out, regulatory proteins in) via the nuclear envelope’s nuclear pores.
- Participates in DNA repair and chromatin organization/epigenetic regulation.
Note: Prokaryotic cells (bacteria and archaea) lack a nucleus; their DNA is free in the cytoplasm.
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