Question

Possible routes for mitochondrial genesis is?

• A. From other membranous structure
• B. From pre-existing mitochondria
• C. De novo synthesis
• D. All the above

Answer 1

The correct option is D All the above

Mitochondrial biogenesis is the formation of new mitochondria from pre-existing mitochondria and precursors. It is produced from the transcription and translation of genes both in the nuclear genome and in the mitochondrial genome. The majority of mitochondrial protein comes from the nuclear genome, while the mitochondrial genome encodes most parts of the electron transport chain along with mitochondrial rRNA and tRNA. The parts of mitochondria are assembled by the De novo pathway. Thus, the correct answer is option D.