| 1. | The mitochondria and the plastids of the diatom somehow remain functional.
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| 2. | Later endosymbiosis led to the spread of plastids in some lineages.
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| 3. | Plastids, small structures inside cells, are found in all plants.
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| 4. | Most of them produce sperm cells that do not contain any plastids.
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| 5. | Thirty genes are considered plastid genes, coding for plastid proteins.
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| 6. | There are many other types of plastids, which carry out various functions.
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| 7. | Next, the two plastid-dividing rings, or PD rings form.
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| 8. | The parasitic dinoflagellate " Hematodinium " however lacks a plastid entirely.
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| 9. | The alga is eaten normally and partially digested, leaving the plastid intact.
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| 10. | The enlarged plastid is compensated by reduced cytoplasmic components.
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