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BIO NMDCAT Cytoplasmic Organelles
nmdcat.online July 4, 2026

65. The structural presence of 70S ribosomes and naked circular DNA molecules inside the mitochondrial matrix provides primary evidence for the

A. Fluid mosaic membrane theory
B. Endosymbiotic evolutionary theory
✓
C. Central dogma loop framework
D. Cellular autonomy hypothesis

📝 Explanation

These prokaryotic-like genetic traits strongly confirm that mitochondria evolved from ancient alpha-proteobacteria engulfed by primitive cells.

📖 Additional Information

  • Fluid mosaic membrane theory
  • Endosymbiotic evolutionary theory
  • Central dogma loop framework
  • Cellular autonomy hypothesis

These prokaryotic-like genetic traits strongly confirm that mitochondria evolved from ancient alpha-proteobacteria engulfed by primitive cells.

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