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Where is heterochromatin found?


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Solution

Heterochromatin:

  1. Heterochromatin is a rich cytological substance found near the centromeres and telomeres of cells.
  2. It is gene-poor, consisting largely of repetitive DNA sequences and non-coding RNA transcripts.
  3. Its capacity to inhibit euchromatic gene expression is perhaps its most prominent feature.
  4. Heterochromatin is a densely packed form of chromatin found in the nucleus of eukaryotic cells, as opposed to euchromatin, which is light.
  5. Heterochromatin accounts for less than 10% of human chromatin, with euchromatin accounting for the vast majority (over 90%).
  6. Heterochromatin is a condensed variant of euchromatin that is more compact.

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