Which of the Following Is Not True of Human MtDNA

Multiple Choice

Which of the following is not true of human mtDNA?

A) it encodes all of its own proteins
B) it can all be traced back to females that lived in Africa 20,000 years ago
C) it encodes components of the electron transport chain
D) it encodes all of the rRNA for its own ribosomes
E) it has a higher mutation frequency than nuclear DNA