Difference between euchromatin and heterochromatin?

Answer:
-> Euchromatin is a lightly packed form of chromatin (DNA, RNA and protein) that is rich in gene concentration.Heterochromatin is a tightly packed form of DNA.
->Euchromatin is found in both cells with nuclei (eukaryotes) and cells without nuclei (prokaryotes) while heterochromatin is found only in eukaryotes.
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