The genome of eukaryotes consists of genes derived from
A) archaebacteria alone.
B) bacteria alone.
C) both archaebacteria and bacteria.
D) neither archaebacteria nor bacteria.

Question

Quizplus · Accepted Answer

Eukaryotic genomes have genes that have been derived from both archaebacteria and bacteria through a process called endosymbiosis. Mitochondria, which are eukaryotic organelles responsible for energy production, are believed to have been derived from a bacterial ancestor, while chloroplasts in plants, algae, and some protists are believed to have been derived from a photosynthetic cyanobacterial ancestor. These endosymbiotic events contributed to the evolution and complexity of eukaryotic genomes.

The Genome of Eukaryotes Consists of Genes Derived from