LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are evidence to support endosymbiotic theory?
A
Mitochondria is found outside the cells
B
Mitochondria and chloroplast can divide independently
C
Mitochondria and chloroplast have their own cell membrane
D
Mitochondria and chloroplast have their own genetic material
Explanation: 

Detailed explanation-1: -Explanation: Bacteria, a prokaryote, has circular DNA, as do mitochondria and chloroplasts. This provides support for the Endosymbiotic Theory, which states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote).

Detailed explanation-2: -The three pieces of evidence of the endosymbiotic theory are that the organelles like mitochondria and chloroplast are self-replicating organelles with their DNA that shares similarities with the prokaryotic genetic material and have double membrane-like prokaryotes.

Detailed explanation-3: -There is broad evidence to show that mitochondria and plastids arose from bacteria and one of the strongest arguments to support the endosymbiotic theory is that both mitochondria and plastids contain DNA that is different from that of the cell nucleus and that they have their own protein biosynthesis machinery.

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