The ancestor of all living things would be expected to have all of the following except a/an
Cell membrane
Cell wall
Endoplasmic reticulum
Ribosomes
A
Cell membrane
B
Endoplasmic reticulum
C
Cell wall
D
Ribosomes
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Solution
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The correct option is C Endoplasmic reticulum All cellular organisms came into existence from the Last Universal Common Ancestor (LUCA). This group contains Bacteria and Archea which are prokaryotes, which lack membrane bound cellular structures, like the Golgi, Endoplasmic Reticulum etc
So, the correct answer is 'Endoplasmic reticulum'
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