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What is the role of heterochromatin?


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Solution

1. Heterochromatin is densely staining chromatin that appears as nodules in or along chromosomes and contains relatively few genes.

2. Heterochromatin was so named because its chromosomal material (chromatin) stains more darkly throughout the cell cycle than most chromosomal material

3. Heterochromatin is a constituent of eukaryotic genomes with functions spanning from gene expression silencing to constraining DNA replication and repair.

4. Heterochromatin plays an important role in gene regulation and protects the integrity of chromosomes.

5. Heterochromatin controls the structure and expression of large chromosome domains and is required for proper chromosome segregation.

6. Heterochromatin is required for cell migration.


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