OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They both contain ribosomes and a plasma membrane.
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They both contain their own DNA and reproduce by binary fission.
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They both contain DNA found in modern bacteria and reproduce sexually.
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They both contain their own nuclei and plasma membranes.
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Detailed explanation-1: -Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear. Mitochondria and chloroplasts have their own ribosomes which have 30S and 50S subunits, not 40S and 60S.
Detailed explanation-2: -The mitochondrion and the chloroplast are both organelles that were once free-living cells. They were prokaryotes that ended up inside of other cells (host cells). They may have joined the other cell by being eaten (a process called phagocytosis), or perhaps they were parasites of that host cell.
Detailed explanation-3: -B. Mitochondria and Plastids like Chloroplast have their own DNA and ribosomes because of which they are able to synthesize some of their own proteins and replicate independent of the nucleus.