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The mitochondrion is a cellular structure found within the cytoplasm. Since the cytoplasm of a zygote is inherited from the female gamete, the mitochondrial DNA is also passed down from the mother. Therefore, in the F2 generation, the genetic material in mitochondria originates from the maternal side, meaning mutations in this DNA are not transmitted to offspring.

1. Inheritance through mitochondria
2. Inheritance through the nucleus
3. Inheritance through the cytoplasm
4. No inheritance

Correct answer: Inheritance through the cytoplasm

Solution

The mitochondrial genome is inherited maternally through the cytoplasm of the egg. This is an example of cytoplasmic inheritance, as the zygote's cytoplasm, including mitochondria, is derived from the female gamete.

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