Chromatin
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Chromatin is a complex of DNA and protein responsible for condensing and packaging chromosomal DNA. Chromatin is found in both bacterial and eukaryotic cells.
Microscopy of heterochromatic versus euchromatic nuclei (H&E stain).
Chromosome
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A chromosome is a package of DNA containing part or all of the genetic material of an organism. In most chromosomes, the very long thin DNA fibers are coated with nucleosome-forming packaging proteins
Chromatin
…The metaphase structure of chromatin differs vastly to that of interphase. It is optimised for physical strength and manageability, forming the classic chromosome structure seen in karyotypes. The structure of the condensed chromatin is thought to be loops of 30 nm fibre to a central scaffold of proteins. It is…
Condensed chromosome (purple rod) inside a bone marrow erythrokaryocyte undergoing mitosis
Human chromosomes during metaphase
The 23 human chromosome territories during prometaphase in fibroblast cells
Theodor Boveri