Whose DNA is present in mitochondria?

Mitochondria contain their own DNA, known as mitochondrial DNA (mtDNA), which is separate from the DNA present in the nucleus.

This DNA is believed to have originated from ancient bacteria that entered into a symbiotic relationship with early cells. Mitochondrial DNA carries genes that are essential for the functioning of mitochondria, especially in energy production.

In humans, mitochondrial DNA is inherited only from the mother because the mitochondria in the sperm do not contribute to the embryo after fertilization.

Thus, mitochondria have their own genetic material, which plays a key role in cellular respiration and energy generation.