Eduprobe
Question:
Mitochondria and chloroplast are:(a) Semi-autonomous organelles.(b) Formed by a division of pre-existing organelles and they contain DNA but lack protein-synthesizing machinery. Which one of the following options is correct?
(b) is true but (a) is false
Both (a) and (b) are correct
(a) is true but (b) is false
Both (a) and (b) are false
Solution:
The correct option is C (a) is true but (b) is false. Mitochondria are considered as semi-autonomous cell organelle due to the following counts: Mitochondria have their own DNA which can replicate independently. The mitochondrial DNA produces its own mRNA, tRNA and rRNA. The organelles possess their own ribosomes, called mitoribosomes. The same applies to chloroplast as well.