Question

Which of the following characteristics make mitochondria and chloroplast semi-autonomous organelles?

• A. They oxidise carbohydrates and fatty acids.
• B. They have their own DNA and ribosomes.
• C. They capture sunlight to synthesise food.
• D. They provide energy to the cell.

Answer 1

The correct option is B

They have their own DNA and ribosomes.

Mitochondria and chloroplasts have their own DNA and ribosomes. This is due to their evolutionary origin as primitive prokaryotes. They eventually became a part of the eukaryotic cell. They are semi-autonomous as they can replicate independently and produce their own RNA and proteins.