Biology 9700 · AS & A Level · Cells as the basic units of living organisms

Cells as the basic units of living organisms — practice question

Mitochondria are believed to have evolved from prokaryotic cells that were taken in by an ancestral cell. Which feature did prokaryotes lose as they evolved into mitochondria?

Acell wall
Bcircular chromosome
Cendoplasmic reticulum
Dribosomes

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