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Content of the cell nucleus

The prokaryotic and eukaryotic cells

The genetic material in the nucleus

Mitochondrion – the energy centre

Nuclear envelope

Nucleoplasm

Nucleus – the information centre

Nucleolus

Content of the cell nucleus

DNA, genes and the genome

DNA as a store of genetic information

Structural organization of DNA in the cell

From DNA helix to chromosomes

Haploid and diploid number of chromosomes

Haploid and diploid number of chromosomes

Homologous chromosomes

Structure of chromosomes

Structure of chromosomes

Human karyotype

Euchromatin and heterochromatin

The amount of genetic material in the gametes

The concept of chromosome number

Mitochondrial and chloroplast DNA

Other organelles that contain genetic material