The correct answer is Option (3) - Mitochondria
The cell organelle that contains DNA apart from the nucleus is the Mitochondria.
Mitochondria:
- Structure: Mitochondria are double-membraned organelles found in the cytoplasm of eukaryotic cells. They have an outer membrane and an inner membrane, which encloses the mitochondrial matrix.
- Function: Mitochondria are often referred to as the "powerhouses" of the cell because their primary function is to generate energy in the form of adenosine triphosphate (ATP) through cellular respiration.
- DNA: Mitochondria contain their own genetic material in the form of a small circular DNA molecule. This DNA encodes some of the essential proteins and RNA molecules needed for mitochondrial function.
- Replication: Mitochondria can replicate independently of the cell's nucleus through a process similar to bacterial cell division. This allows cells to maintain an adequate number of functional mitochondria.
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