BIO NMDCAT Cytoplasmic Organelles

nmdcat.online July 4, 2026

7. During transcription, the highly condensed, transcriptionally inactive regions of chromosomal DNA within the nucleus are classified as

A. Euchromatin

B. Heterochromatin

✓

C. Nucleosomes

D. Solenoids

📝 Explanation

Heterochromatin is tightly packed, dark-staining, and transcriptionally silent, whereas euchromatin is loosely packed and active.

📖 Additional Information

Euchromatin
Heterochromatin
Nucleosomes
Solenoids

Heterochromatin is tightly packed, dark-staining, and transcriptionally silent, whereas euchromatin is loosely packed and active.

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