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Lemur [1.5K]
3 years ago
12

Which of the following pieces of evidence supports the claim that mitochondria trace their history back to free-living bacteria?

Biology
1 answer:
Ira Lisetskai [31]3 years ago
6 0

The answer is (A) Mitochondria have their own DNA molecules, separate from the rest of the cell's DNA.

The endosymbiotic hypothesis concerns with the presence of two special organelles, mitochondria and chloroplast within the eukaryotic cell. These two organelles have their own set of DNA that is different from the nuclear DNA of the eukaryotic cell. It is believed that a primordial eukaryotic cell was in a symbiotic relationship with mitochondria-like bacterium. The primordial cell eventually engulfed the mitochondria-like bacterium for ATP production to power itself.

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The question: Do mice live longer when they are fed high sugar diets?

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Collect data through experimentation. Use some mice as a 'control'. These mice will not undergo any changes but will be kept for comparison. Expose some other mice to high sugar diets and the compare the outcome with the 'control' mice.  

Analyzing: From the experiment this you can choose which hypothesis you are going to accept. I.e. null: no change or alternate: there was a change and do some extra research to back up your hypothesis.

Hope this helps :)

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