1.5 Chromosomes and chromatin

The DNA is usually dispersed in the nucleus as chromatin, but during mitosis and meiosis it becomes condensed and forms into a number of approximately cylindrical structures, the chromosomes.

Chromosomes are the DNA-containing structures of eukaryotic nuclei that form during the process of cell division.

Figure 1.13. Chromosomes formed during mitosis.
Figure 1.13. Chromosomes formed during mitosis.

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