Final answer:
The option that is NOT found in both mitochondria and prokaryotes is D. cell wall. Mitochondria do not have a cell wall, whereas prokaryotes typically do.
Step-by-step explanation:
The option that is NOT found in both mitochondria and prokaryotes is D. cell wall. Let's look at the other options for clarity: A. circular chromosome can be found in both; B. ATP-generating mechanism - mitochondria are involved in ATP production through cellular respiration, while prokaryotes are also capable of ATP production albeit through different mechanisms; C. binary fission is a method of replication common to prokaryotes and also observed in the division of mitochondria; and E. 70S ribosomes are components of the protein synthesis machinery present in both mitochondria, which have their own ribosomes similar to those of prokaryotes.
In mitochondria and prokaryotes, D. cell wall is NOT found. Both mitochondria and prokaryotes have a circular chromosome, ATP-generating mechanism, binary fission, and 70S ribosomes. The cell wall, on the other hand, is a protective layer typically found in prokaryotic cells and in some eukaryotes, but it is not present in mitochondria.