General Science • BiologyMedium
Which cell organelle is considered semi-autonomous because it contains its own circular DNA and 70S ribosomes?
A. Lysosome
B. Golgi apparatus
C. Mitochondria✓ Correct Answer
D. Endoplasmic reticulum
💡 Solution & Explanation
Mitochondria and chloroplasts are termed semi-autonomous cell organelles because they possess their own circular DNA molecules and protein-synthesizing 70S ribosomes, allowing them to replicate independently to some extent. Lysosomes, Golgi apparatus, and the endoplasmic reticulum lack independent genetic material. This supports the endosymbiotic theory of cellular evolution.
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