Which one of the following has its own DNA?

Question

Accepted Answer

B. 1. Recall which organelles possess their **own DNA**.
**Mitochondria** is a semi-autonomous structure within the cytoplasm of eukaryotic cells that carries out aerobic respiration and contains its own circular DNA.

2. Understand why this DNA matters.
Since mitochondria carry out the Krebs cycle and the electron transport system (ETS), they are also called the cell's **energy production site**, and their own DNA supports independent synthesis of some respiratory proteins.

3. Eliminate the other options.
**Dictyosome (Golgi body), peroxisome, and lysosome** do not contain their own DNA — they rely entirely on nuclear DNA for their protein components.

Hence, the answer is **B. Mitochondria**.