nmdcat.online
BIO NMDCAT Chromosomes
nmdcat.online July 4, 2026

5. The basic structural repeating unit of eukaryotic chromatin organization composed of DNA wrapped around a histone octamer is the

A. Solenoid fiber
B. Nucleosome
✓
C. Chromatid filament
D. Centromere core

📝 Explanation

A nucleosome is the fundamental repeating structural unit of chromatin, consist of approximately 146 base pairs of DNA wrapped around a core octamer of basic histone proteins (two copies each of H2A, H2B, H3, and H4).

📖 Additional Information

  • Solenoid fiber
  • Nucleosome
  • Chromatid filament
  • Centromere core

A nucleosome is the fundamental repeating structural unit of chromatin, consist of approximately 146 base pairs of DNA wrapped around a core octamer of basic histone proteins (two copies each of H2A, H2B, H3, and H4).

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

4. The protective repetitive nucleotide sequences caps located at the extreme ends of eukaryotic linear chromosomes are known as

Next Question

6. The histone protein acting as a linker component to seal the DNA ribbon outside the core nucleosome particle is

Back to All Questions

🔗 Related MCQs

An increase in the incidence of ectopic pregnancies within a population can often be epidemiologically correlated with a prior increase in the prevalence of which sexually transmitted disease?
July 16, 2026
In the life cycle of Herpes Simplex Virus 2 (HSV-2), the virus travels along nerve fibers to reach the sensory ganglia. The cellular mechanism responsible for this retrograde transport utilizes:
July 16, 2026
A defining characteristic of the lesions associated with the secondary stage of syphilis is that they:
July 16, 2026
The causative agent of genital herpes, HSV-2, is enveloped. The biological significance of this viral envelope in the context of transmission is that it makes the virus:
July 16, 2026
The structural basis for the severe cardiovascular complications seen in tertiary syphilis, such as aortic aneurysms, is the chronic inflammation and destruction of:
July 16, 2026

Categories

View all →