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BIO NMDCAT Structure of DNA
nmdcat.online July 3, 2026

78. The physical structure of a chromosome in eukaryotic cells is formed when a single, massive molecule of double-stranded DNA is

A. Dissolved completely into a solution of lipids
B. Coiled and packed systematically with structural proteins
✓
C. Broken into hundreds of short single-stranded RNA fragments
D. Linked covalently to the carbohydrate cell wall ribbon

📝 Explanation

Eukaryotic chromosomes are highly organized nucleoprotein complexes made of a single linear DNA molecule wound around structural histones.

📖 Additional Information

  • Dissolved completely into a solution of lipids
  • Coiled and packed systematically with structural proteins
  • Broken into hundreds of short single-stranded RNA fragments
  • Linked covalently to the carbohydrate cell wall ribbon

Eukaryotic chromosomes are highly organized nucleoprotein complexes made of a single linear DNA molecule wound around structural histones.

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