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biology > chapter 25.2- Eukaryotic symboitic cells > Flashcards

chapter 25.2- Eukaryotic symboitic cells Flashcards

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1
Q

The endosymbiotic Hypothesis:

A

Chloroplast and mitochondria were originally free-living bacteria.

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2
Q

What is some evidence that supports this Hypothesis?

A
  • Mitochondria is about the same size as a bacterium
  • Mitochondria genome is circular as bacteria
  • Mitochondria have their own ribosomes
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3
Q

How does phylogenetic data support hypothesis?

A

mitochondria DNA more closely resembles the DNA i protobacteria than from DNA of nuclear eukaryotes.

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