Two Different Species of Bacteria Have Long Been Placed in the Same

Multiple Choice

Two different species of bacteria have long been placed in the same clade in a phylogenetic tree. However, this placement is based on morphological and physiological similarities. How would a scientist determine if these bacteria actually share a common ancestor, or have shared traits due to convergent evolution and are therefore a polyphyletic group?

A) Chromatography
B) Glycoprotein similarities
C) gDNA sequence analysis
D) UV microscopy
E) cpDNA or mtDNA sequence analysis