Question

Which two sentences describe evidence that mitochondria began as

prokaryotes?
A. The enzymes in a mitochondrion's plasma membrane are
different from those in prokaryotic cells.
B. A mitochondrion has its own ribosomes that replicate its DNA.
C. A mitochondrion undergoes binary fission to reproduce itself.
D. A mitochondrion shares the same DNA found in the nucleus of
the cell.

Answer 1

The two sentences that provide evidence for mitochondria having originated as prokaryotes are that mitochondria contain their own ribosomes and DNA (B), and that they replicate through a process resembling binary fission (C). Therefore, the correct option is B & C.

Step-by-step explanation:

The evidence that mitochondria began as prokaryotes is found in the way they replicate and their genetic attributes. Specifically, the sentences that describe this evidence are:

B. A mitochondrion has its own ribosomes that replicate its DNA.

C. A mitochondrion undergoes binary fission to reproduce itself.

These characteristics are akin to how prokaryotes behave, with mitochondria being able to self-replicate through a process similar to binary fission and having their own DNA and ribosomes which is uncommon for organelles but expected for free-living organisms.