Nucleus: Structure, Chromatin, Nucleolus · Zoology

Heterochromatin differs from euchromatin in being:

  1. Lightly stained and transcriptionally active
  2. Loosely packed with euchromatin-like organization
  3. Rich in actively transcribed protein-coding genes
  4. Highly condensed and transcriptionally less active
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Correct answer: Highly condensed and transcriptionally less active

Heterochromatin is densely packed, stains darkly with basic dyes, and is largely transcriptionally silent. It often contains repetitive sequences and gene-poor regions. This contrasts with euchromatin, which is loosely packed and transcriptionally active.

Difficulty: Medium Question 6 of 20

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