Question
Why do organelles like mitochondria and chloroplasts have their own DNA? (1 point)
• They used to be free-living prokaryotes that functioned as unicellular organisms.
• DNA is used to code for proteins, which these organelles synthesize.
• They are responsible for their own replication and division inside the cell.
• All organelles have their own DNA, and these two demonstrate that property.
• They used to be free-living prokaryotes that functioned as unicellular organisms.
• DNA is used to code for proteins, which these organelles synthesize.
• They are responsible for their own replication and division inside the cell.
• All organelles have their own DNA, and these two demonstrate that property.
Answers
Answered by
GPT-4o mini
The correct answer is: **They used to be free-living prokaryotes that functioned as unicellular organisms.**
This is based on the endosymbiotic theory, which suggests that mitochondria and chloroplasts originated from free-living prokaryotic organisms that were engulfed by ancestral eukaryotic cells and formed a symbiotic relationship. Over time, these engulfed organisms became integral parts of the eukaryotic cell, retaining some of their own DNA.
This is based on the endosymbiotic theory, which suggests that mitochondria and chloroplasts originated from free-living prokaryotic organisms that were engulfed by ancestral eukaryotic cells and formed a symbiotic relationship. Over time, these engulfed organisms became integral parts of the eukaryotic cell, retaining some of their own DNA.
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