Question
Organelle having DNA is____?
| A. | Mitochondria |
| B. | Golgi complex |
| C. |
Golgi complex |
| D. |
RER |
|
Correct Answer � A Explanation |
 |
Mitochondria are organelles found in eukaryotic cells that have their own DNA. They are often referred to as the “powerhouses” of the cell because they are responsible for generating most of the cell’s energy through a process called cellular respiration.
Mitochondria have a double membrane structure, and within their inner membrane, they house their own DNA, known as mitochondrial DNA (mtDNA).
Mitochondrial DNA is separate from the nuclear DNA found in the cell’s nucleus. It contains genes that encode for some of the proteins, RNA molecules, and other components needed for mitochondrial function and energy production.
Reason to rule out other options:
Option B. The Golgi complex, or Golgi apparatus, is involved in processing, modifying, and packaging proteins and lipids for transport to their specific destinations within the cell or for secretion. It does not have its own DNA.
Option C. The SER is involved in various functions, including lipid metabolism, detoxification of drugs and toxins, and calcium storage. It does not contain DNA.
Option D. The RER is responsible for the synthesis and processing of proteins. It is called “rough” because it is studded with ribosomes involved in protein synthesis. However, it does not contain its own DNA.
