BIO NMDCAT Chromosomes

nmdcat.online July 4, 2026

2. The primary constriction of a chromosome where spindle fibers attach during cell division is designated as the

A. Telomere

B. Chromomere

C. Centromere

✓

D. Satellite body

📝 Explanation

The centromere represents the primary constriction site of a chromosome. It serves as the assembly platform for the kinetochore complex where mitotic or meiotic spindle fibers attach. Telomeres are terminal ends, and satellite bodies are associated with secondary constrictions.

📖 Additional Information

Telomere
Chromomere
Centromere
Satellite body

The centromere represents the primary constriction site of a chromosome. It serves as the assembly platform for the kinetochore complex where mitotic or meiotic spindle fibers attach. Telomeres are terminal ends, and satellite bodies are associated with secondary constrictions.

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