How mitochondria first got replicated during cell division since they were a separate organism.

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How mitochondria first got replicated during cell division since they were a separate organism.

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But it makes sense why you only get your birth-mother’s mitochondria, as the egg is the starting scaffolding to construct the baby and its her blood feeding those cells

Mitochondria divide just like other cells (they even have their own DNA). Presumably, the mitochondria already replicated a few times inside the host cell, so when the host cell split, both daughter cells had mitochondria too. Think of it like adding a raisin (the mitochondria) to a ball of dough (the host cell). The raisin multiplied and distributed around the dough, and then the dough ball got split in half with raisins now in both halves.

Mitochondria divide like cells do. The first mitochondria divided a lot, and so did the parent cell, so it became a part of a lot of cells. Eventually, most cells had mitochondria. It’s the same thing with chloroplasts. Chloroplasts also used to be separate organism.