The nucleus

In this topic

• The nucleus — the cell's control centre
• The nuclear envelope, the pores and the nucleoplasm
• Chromatin and chromosomes — one substance, two states
• Chromosome structure, the karyotype and the nucleolus

Key terms

• Nucleus
• Nuclear envelope
• Nuclear pore
• Nucleoplasm
• Chromatin
• Nucleosome
• Heterochromatin
• Chromosome
• Chromatid
• Centromere
• Karyotype
• Nucleolus

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