Which of the following cell organelles possesses its DNA and can synthesise proteins for its functions?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Chloroplast.
The chloroplast is the cell organelle that possesses its own DNA and can synthesize some of the proteins required for its functions. Found in plant cells and certain algae, chloroplasts are the sites of photosynthesis, converting sunlight into chemical energy. Their circular DNA and ribosomes allow them to produce specific proteins independently of the cell’s nuclear DNA. This semi-autonomous capability supports the endosymbiotic theory, suggesting that chloroplasts evolved from free-living photosynthetic bacteria that were engulfed by ancestral eukaryotic cells, contributing to energy production and metabolic efficiency in plants.