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Mitochondria and chloroplast are

1. semi-autonomous organelles
2. formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery
3. Both (a) and (b) are correct
4. Both (a) and (b) are false

Correct answer: semi-autonomous organelles

Solution

Mitochondria and chloroplasts have their own DNA and ribosomes, so they can make some of their own proteins and divide independently to a degree. Because they still rely on nuclear genes for many functions, they are called semi-autonomous organelles.

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