Diseases related to mitochondria are inherited from female parent only. Give reason.

Explanation

### Step-by-Step Solution:

1. **Understanding Mitochondria**: Mitochondria are known as the powerhouse of the cell. They are responsible for producing energy in the form of ATP through cellular respiration. Importantly, mitochondria have their own DNA, separate from the nuclear DNA found in the cell's nucleus.

2. **Mitochondrial Inheritance**: Mitochondrial DNA (mtDNA) is inherited exclusively from the mother. This is because, during fertilization, the ovum (egg) contributes the majority of the cytoplasm and organelles, including mitochondria, while the sperm contributes primarily nuclear DNA.

3. **Fertilization Process**: During fertilization, when the sperm and egg unite, the sperm's mitochondria are typically destroyed. This occurs because the sperm's mitochondria are located in the tail, which is discarded after the sperm penetrates the egg. As a result, the embryo only receives the mitochondria from the egg.

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