Question

pts Which of the following is FALSE about the Theory of Endosymbiosis? Chloroplasts and mitochondria have their own DNA Chloroplasts and mitochondria are enclosed in a double membrane Chloroplasts and mitochondria divide by a process that closely resembles binary fission Chloroplasts are present in all eukaryotic cells The DNA of chloroplasts and mitochondria is very similar to that of other free-living prokaryotes Previous Next →

Answer 1

Eukaryotic cells may have evolved when multiple cells joined together into one. They began to live in what we call symbiotic relationships. The theory that explains how this could have happened is called Endosymbiotic theory.

The Endosymbiotic theory states that

1) Some of the organelles in eukaryotic cells were once prokaryotic microbes.

2) Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission.

3) Mitochondria and chloroplasts have their own DNA which is circular, not linear.

4) They both have presence of double membranes which have similarities with modern day prokaryotes.

The options a), b), c), e) are in accordance with the evidences of the theory.

The option d) doesn't hold any significance as chloroplasts are found only in the plant cells.

So, (d) is the correct option.

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