Question

Where is heterochromatin found?

Answer 1

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.