Question 2 Which statement is the best evidence in support of the endosymbiosis theory of Eukaryota? A Organelles in some protists have evolved to sense light. B Cyanobacteria are capable of photosynthesis. Chloroplast DNA is found in lichens.
Question 2 Which statement is the best evidence in support of the endosymbiosis theory of Eukaryota? A Organelles in some protists have evolved to sense light. B Cyanobacteria are capable of photosynthesis. Chloroplast DNA is found in lichens.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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Transcribed Image Text:**Question 2**
Which statement is the best evidence in support of the endosymbiosis theory of Eukaryota?
A) Organelles in some protists have evolved to sense light.
B) Cyanobacteria are capable of photosynthesis.
C) Chloroplast DNA is found in lichens.
D) Mitochondria has a circular chromosome. (Highlighted as the selected answer)
Expert Solution
Step 1
Evidences of the symbiotic theory of the Eukaryotes are:
1. Presence of the DNA as both the mitochondria and chloroplast have circular DNA.
2. Ribosomes Size: Either in the larger 80 S form or smaller form 70S.
3. Plasma-Membrane- both the mitochondria and the chloroplast are surrounded by the two or more membranes like in bacteria.
Many more evidences are there which prove and support the endosymbiosis theory of Eukaryotes.
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