Question

what is an advantage to studying mitochondrial genomes instead of nuclear genomes A: mitochondrial genomes contain more information B: mitochondrial genomes contain more junk DNA C: mitochondrial genomes are smaller D: mitochondrial genomes contain more genes

Answer 1

Mitochondrial DNA is a smaller version of regular DNA; with Mitochondrial only having enough base pairs to create 37 genes. This means that mDNA is was sequenced and is a baseline in phylogenetics.  Your answer is going to be "C"