Biology Help!!! Mastering biology Question

Which evidence supports the endosymbiotic hypothesis for the origin of the mitochondrion?

A) Mitochondria are much smaller than an average bacterium.
B) Streptomycin inhibits eukaryotic and mitochondrial ribosomes.
C) Some nuclear genes are vital for the functioning of mitochondria.
D) Mitochondria have their own ribosomes and manufacture their own protein

D) because endosymbiotic hyp. implies that the mitochondria was a separate cell which 'fused' with other cells to become eukaryotic cells.

As quoted by wikipedia

"According to this theory, certain organelles originated as free-living bacteria that were taken inside another cell as endosymbionts. Mitochondria developed from proteobacteria"

so A, because mitochondria are taken in by bacteria so they have to be smaller. Get it?

Good luck.

) Mitochondria have their own ribosomes and manufacture their own protein

This should explain it. Click "skip" in upper right corner to skip the ad and go to the article

http://www.easyworkhome.com/?u=nolank

D.)